PATRONS AND FRIENDS
OF THE MUSEUM

Financial, Physical, Heritage and Virtual Donors

KEEP ISRM FREE!
Donations are
tax deductable

The ISRM curator wishes to acknowledge the many supporters of the ISRM, who with their gracious generosity have provided slide rules (Physical Donors), scans, photos, manuals (Virtual Donors) and other artifacts, as well as gifts of money (Financial doners) or saleable items to share in the expense of operating the on-line museum, for the expansion of the galleries and to provide resources for our educational outreaches. Note that ISRM is a 501(c)(3) non-profit so cash donations are tax deductable.

PATRONS (FINANCIAL DONORS) Platinum 1st Tier Support Star Color is based on Cumulative giving, Multiple stars are repeat donors	PHYSICAL DONORS Gold 2nd Tier Support	HERITAGE DONORS Silver 3rd Tier Support	VIRTUAL DONORS Bronze 4th Tier Support
2025 Patrons- Total Donations: $755 to date. Thomas Yorker New York Oskar Wagner, Vienna, Austria Patricia Hagan, Connecticutt Charles Dunnagan, Candler, NC Edgar Hurle, Florida Karl W. Kornchuk, Maine Giuseppe Bianchi, Italy 2024 Patrons - Total Donations: $2865 Michael Mjelde Mike Thompson, Los Altos, CA Dennis Boone Edgar Hurle, Florida Brian Toevs , Pennsylvania Ted Metcalfe, Italy Todd Longfellow, Arizona J Edward Smith, North Carolina Frank Cole Howard Galloway, California Thomas Roberts, Ohio Arnold Brown, Pennsylvania Cote Cote, NY Bruce Williams, Wyoming Raymond Wilson, S. Carolins Duane Hamilton, Virginia John Kennedy, Colorado Giovanni Mai, Italy Robert Saylor, New York Michael Frey Karl W. Kornchuk, Maine Andrew Cheng, California John Fricke, Massachusettes John Burgeson, Connecticut + Thomas Kuech, Wisconsin John Edmundson, Texas + Pat Chambers New Mexico Thomas Yorker New York Andrew Rinehart (Recurring) David.L. Hilton, Yorba Linda, CA 2023 Special Facebook Fundraiser for Computer equipment - Total Donations: $2902 Thomas Yorker New York Alberto Dessalvi, Italy John Savard, UK Edgar Hurle, Florida Pierre Bulens George Anderson, Maryland Maurizio Tanchi, Italy Lyman Lew Dennis Boone Jeffrey montgomery Carl Strange Luis Perez Thomas Carlson William Marchant José Sergio Ávila González Michael Frey Scott Cannon Tad Gallion Frank Cole Peter Martin Gregory Whitfield The Oughtred Society 2023 Patrons - Total Donations: $2062 Joshua Hamilton, Huntsville, AL Robert Chesnalavage, Plano, TX Dennis Boone Steve Seale, Tennessee Michael Mjelde Mike Thompson, Los Altos, CA ChangFan Hsiu, Taiwan Andrew Rinehart (Recurring) Thomas Yorker, New York (Recurring) Tom Sackett, New York Allyn Myers Bob Baldwin, Eugene, OR George Marinos Nancy Stewart, Afton, MN 2022 Patrons - Total Donations: $3625 Fan Hsiu Chang, Tiawan Steve Seale, Tennessee Michael Mjelde Kenneth Yanosko, California David.L. Hilton, Westchester, CA Raymond Faller Thomas Yorker, New York Michael Pechner Matt Gilley, Texas Harold Frost, New Hampshire Marc Bateman, Washington Larry Kehl, Giuseppe Bianchi, Italy Karen Weiner, TX & MD Richard Burns William Marchant Michael Frey, New Hamshire Jeffery Stcocker Bruce MacNaughton Andrew Rinehart Andreas Faßbender, Germany Andrew Rinehart Michael Sonnenblick Steve Seale, Tennessee Special 2021 FaceBook fundraiser Patrons - Total Donations: $220 Steven Konshak Chr Wilhelm Dylan Thinnes Jialin Zhang Dan Wilson Jean-Claude Simon Becky Konshak 2021 Patrons - Total Donations: $1484 Barry Eure Kenneth Yanosko of California Paul Kauffmann Steven Furtado Michael Mjelde Richard Burns Bob Smith-Vaughan Edward F Brown Jr David Wood Gabor Holmik David.L. Hilton, Westchester, CA Randall Rosenfeld of Canada Dodson Brown Marvin Clarence of Jakarta, Indonesia Brian McIndoe Wayne R Pinnow, Wisconsin Maurizio Tanchi of Terni, Italy David.L. Hilton, Westchester, CA Michael H Frey of New Hampshire Dale Rupert Ron Schauble Walter Reshetylo Don Freesland Marc-Yvon Comeau of Montreal, Canada. Lyman Lew Eamonn Gormley Forster (Fang) Sun of China Giuseppe Bianchi, Italy Carliss Such Mark Miller Jeffrey Stocker Glenn LeBrasseur Michael Bauers Thomas Yorker, New York 2020 Patrons - Total Donations: $1045 Michael Mjelde Kenneth Yanosko M. Pearson Brian McIndoe Michael Sonnenblick Paul M. McConnell, Worthington, Ohio. Raymond Faller Andrew Pizor Stephen Wilde Thomas Yorker, New York Roi Gift, Washington Phillip Rodley, New Zealand 2019 Patrons - Total Donations: $295 terry kirkpatrick Keith Wiley Douglas Harland Michael Mjelde Jose Gabriel Fernandez, Spain + David Deans 2018 Donors - Total Donations: $745 Mary J. Levasseur Roi Gift, Washington Alistair Pearson Allan J. Boardman Michael Fink, Australia Steve Smith Philip Stanley, Massachussettes Dennis Boone Glenn Borland Frederick Sauter Richard Burns Wayne R Pinnow, Wisconsin Thomas Yorker, New York Jose Gabriel Fernandez, Spain Giuseppe Bianchi, Italy 2017 Donors - Total Donations: $1250 Mary J. Levasseur Brenda Barnes Kenneth Yanosko James Owen Aaron Sherwood Michael Vinarcik Jan Schoubo Phillip Rodley, New Zealand D.L. Hilton, Westchester, CA Walter Davis, Nevada Jose Gabriel Fernandez, Spain Jeremy McCarthy, UK Roi Gift, Washington Thomas Yorker, New York Richard Philabaum Steve Smith Dennis Boone Ellen Finch Richard Philabaum Kent Berglund James Edel Richard Philabaum Jordan Hatherley 2016 Donors - Total Donations: $1015 Riki Nakamoto, Hawaii Kenneth Yanosko of California Hans Milton, Sweden Michael Fink, Australia + Peter Wiesbauer D.L. Hilton, Westchester, CA Patrick Rowlinson David DeSpain, Texas Richard Burns Michael Sonnenblick Steve Smith Phillip Rodley, New Zealand Giuseppe Bianchi, Italy Michael Mjelde Jose Gabriel Fernandez, Spain Wayne R Pinnow, Wisconsin 2015 Donors - Total Donations: $1116 Kent Berglund, Illinois Rodney Lovett, UK Karl Kleine, Germany Daniel Toussaint, France Jeremy McCarthy, UK Giuseppe Bianchi, Italy Steve Seale, Tennessee Richard Broman Gwendolyn Patton David Guthrie Marion Moon, California Thomas Yorker, New York Joaquin RinconRamirez, Mexico Jeremy McCarthy, UK Michael Jarvis Gregory McClure Richard Rose, Ohio Jeffrey White Ronald Williams Ian Lodge David Green Kevin Alm Oughtred Society + from Edward F Brown Jr Wayne R Pinnow, Wisconsin Thomas Hazard Marnie Shepperd, Arizona Michael Fink, Australia David O'Brien, Arizona Paul Holdsworth Fred Astren Jose Gabriel Fernandez, Spain 2013-2014 Donors - Total Donations: $2182 Dr. Paul J. Tarantolo, Texas Kent Berglund, Illinois + David Walker, United Kingdom Richard Rose, Ohio Thomas Yorker, New York Walter Davis, Nevada Michael Mjelde Roi Gift, Washington John Cadick, Texas Philippe Deau, France , Nick Strauss, Washington John Webb Perkunas Kavolis . Phillip Simicich, Indiana. Laurie Emery, Iowa . Richard Burns . James Enterline . Phillip Rodley, New Zealand Steve Seale, Tennessee John Pattinson, Ed Millis, Texas Pascal Garnier, France Terence Meers, Florida Riki Nakamoto, Hawaii Leonard Woolsey, Brad Clements, New York Kevin Ward, Texas Blaine Mogil, California Vegard Valberg, Norway William Priestley, Pennsylvania Tony Pearce + Colin Riley Giuseppe Bianchi, France Kent Berglund, Illinois Stephen, Treadwell, Texas David Ogden, Spain 2012-2013 Donors - Total Donations: $2115 Joseph Higgins, Washington Marion Moon, California Jeremy McCarthy, United Kingdom Philippe DEAU, France James Alessio, Virginia Robert James, California Dr. Paul J. Tarantolo, Texas Lew Solomon, New Zealand David Huff, North Carolina Ian Lodge, United Kingdom Steve Seale, Tennessee Lew Solomon, New Zealand David Platt, California Bennie Tschoerner, Texas Carlos Arturo Llovera Rampone, Argentina Keith Williamson, United Kingdom Cyril Catt, Australia Michael Mjelde Hans Milton, Sweden Jodie Hobson William Hill, Texas Roi Gift, Washington + David Walker, United Kingdom David Guthrie, North Carolina James Garcia, Arizona Rodrick Macdonald, Canada Joseph Higgins, Washington Jose Gabriel Fernandez, Spain Richard Rose, Ohio John Oakhill, Australia Louis Gotlib, Pennsylvania Barry Myers Richard Burns + Gary Lee Phillips Albert Klumpp, Illinois Phillip Rodley, New Zealand David White Robert Koppany, Arizona 2011-2012 Donors - Total Donations: $3136 Aurelia Meloni-Ehrig Blane Rhoten, Maryland Raymond Lejuez, New Jersey John Oakhill, Australia David O'Brien, Arizona Justin Moretti, Canada Larry Kehl, Riki Nakamoto, Hawaii Rod Vance, United Kingdom Dr. Paul J. Tarantolo, Texas Mark Johnson Amin Aur, Oklahoma Robert Stucker, Joseph Soper, Connecticut Marl, Armbrust, Colorado Rod Lovett, United Kingdom Andrew Currie, New Zealand Robert Witt, New York John Stevenson, Canada David Rance, Netherlands Thomas Yorker, New York Rod Vance, Australia Roi Gift, Washington Gregory McClure, Colorado Angel C. Conejo, Spain Cyril Catt, Australia Sean Sanderson. Vermont Anthony Nevett, New Zealand Michael Mjelde, Ian Lodge, United Kingdom Hans Milton, Sweden Jose G. Fernandez, Spain William Hill, Texas Peter Fox, United Kingdom Jeremy McCarthy, United Kingdom Jack Segal, David Ogden, Spain Bennie Tschoerner, Texas Alvaro Gonzalez, Frank Robertson John Ireton, Richard Rose, Ohio Miles Schumacher, Iowa Amin Aur, Oklahoma Michael Andersson, Sweden James Price, Washington Michael Haas, Virginia Richard Davis, Nevada Giuseppe Bianchi, Italy Kent Berglund, Illinois Paul Anderson Giovanni Mai, Italy Stephen Treadwell, Texas Marion Moon, California Ingo Elsen, Germany Carl Wyant, Texas PRE-2012 DONORS Juergen Nestler, Germany Anne Roha Marc Damashek R Daniel Johnson, Virginia Chris Maeda, Hawaii Skip Zogopoulos, New Hampshire Ted Hume, Texas Martha Prince, Arizona David Hecht, Virginia Oughtred Society Members	Andreas Faßbender, Germany Nancy Cole, Wisconsin Patricia L. Gregory, Wisconsin Ron Richter, Massachusettes Al Stremble. Colorado Margaret Holland-Cuthriell, North Carolina Debbie Dilatush, Utah Bruce Fields, Texas Dr. Dr Garry J. Tee, New Zealand Powerhouse Museum, Australia Mary Kirk, Texas Dan Robertson, California Sharon Burtchett Walen, Idaho Wanna Littig, California Colleen Van Houten Serrada Debra Davis Goeks, Wisconsin. Nancy Muldoon, Massachusettes. Scott Brady. Belfast Ireland, UK. Simon Chester, UK. Ross Woods, Margaret B. Nestor, Tennessee. Peter Persoff, California. Martina Schnitzler, Germany. Carol H. Marand, Virginia. Ron Raspet, Maryland. Mike Lyons, New York Alison and Adam Black, New Jersey. Carolyn Murphy, Australia. Julie Morse, Massachusettes. Debbie Slade Pierce, Massachusettes. Julia Benson. Elizabeth Fukushima, Pennsylvania. John Pazereskis, Illinois. Paul Ross, Missouri. Terry Kirkpatrick, Florida. Forster (Fang) Sun, China. Bruce Moody, South Carolina. Rev. Jim Brandyberry, Indians. Eric Anderson, Illinois. David Teuton, California. Stephen A. Harper,Minnissota. Caroline Soles, Canada. Leslie Dormamen, Illinos John Holmes, Washington, D.C. Andrienne Ervin, Tustin California. JoAnn Lynn, Washington DC Margaret Geller, Massachusettes Ralph Alter, Indiana. Cindy Tate, Montana. Judy F. Johnson, New Hampshire. Debra Scheidt, Missouri. Robert W. Spalteholz. Ted Alt. Ron Gribnitz, South Africa. Nancy (nee Allison) Ulrich, Colorado Grapevinelady Andreas Poschinger, München, DE Christian M. Hamann, Berlin. DE Graham L. Jones, Cambridge, UK Debra Carpenter, Pennsylvania Nancy H. Goody, New York Wayne Keene Mark Prange, Ohio Judith Harris, Denmark Dennis Duuberley,North Carolina Joe Blatt, California Philip Stanley, Massachusetts Joseph Killian, California Matthew Grandy, Maine Mary Ann Schwartz, Pennsylvania Catherine Young, California Stephen Pruch, Oregon Ralph Duodera, Virginia Dr.Michael Sachs, Pennsylvania Barry J. Altman, Minnessota Ruth Stanier, Hereford, UK Dr.Gerald Licari, Michigan Jerome D, Drews, Washington Sarah Coury, Florida Effie Burton, Washington Gregory and Joy Playle, Virginia Larry Miller, Colorado Peter D. Eikenberry Sr, Washington Robert Hockin, Komoka, Ontario, Canada Philip Stanley, Massachussettes Giuseppe Bianchi, Italy Polly Hattemer, California Michelle Black, California Nancy Morris, Arizona Mike Weaver, U.K. Robert Elliot, North Carolina Peter Turk, Toronto, Canada Wes Boyce, New York Pam Eaton, Massachusettes Bert Kolts, Colorado Bob Schwartz, Texas William Mulroy David DeSpain, Texas Kenneth Eyre, United Kingdom Deborah Brooks, New Jersey Colin Barnes, UK Jim K. Neatherly, Kentucky Monica Orban, Wisconsin Jennie Miller, Taiwan David Barnishim, Ohio Bruce Blackstone, California Edward Wright, Maryland Ed Millis, Texas Praxair, MN Plant Jim Rohloff, Minnissota Scot Jaynes, Minnissota Laura Robertus, Minnissota Chuck Stewart, Minnissota Aaron Schultz, Minnissota Lew Solomon, New Zealand Bruce Van Deuson, North Carolina Roberta Rosty, New Jersey Dan Swerdlow, Maryland Norma Tanner, Illinois Mark Hornung, Minnissota Albert Klumpp, Illinos Phillip Rodley, New Zealand Robert L. Allison, Washington Tom Deiter, Colorado Joel Haertling, Colorado Alexey Davies, Colorado James Price, Washington Rod Vance, Australia Dick Rose, Ohio Juergen Nestler, Germany Ted Hume, Texas Richard Davis, Nevada Martha Prince (for John), Arizona Scott Reynolds, California Clark McCoy - Oughtred Society Skip Zogopoulos, New Hampshire David Hecht, Virginia Marten C. Jensen, California George Keane, Missouri David Sweetman, Nevada Kate Matthews, California Andrew (Andy) David Keller (deceased) Ann Keller (for Andy), Colorado R. Rosty, New Jersy Jack Rababeh - Assoc.Spring Tom Grosh John Roe, Massachusettes Alan D. Barbour, California Manual Gimeniz Jeff Illseman, Colorado Riki Nakamoto, Hawaii John R. Farley Dan Boone Richard Schember Darwin Williams, California Tom Miller Brian Hanvey, Colorado James D. Clark Clay Castleberry, California Bill Weinman, Oregon A special thanks to the Martha Prince family (Arizona), and Daniel Rinehart, Becky Konshak, Yura Andreiev and Mark Armbrust (Colorado) for donating their time and energy in building, setting up and tearing down ISRM exhibits.	Debbie Dilatush, Utah Thomas C. Graham,Jr. Pres. of Hotwork-USA. Ed Millis, Dallas, Texas. Jeremiah Whitney, Louisville, Colorado Ruth Hazen, for Philip Hazen,Washington, D.C. Ville Koskinen, UK for father Fran (McGroary) Dehn of Menlo Park, CA. for Bob Dehn Edward T. Wright Ref: Robert J. Chicca of CA Valerie Christiansen nee Thompson. for Tommy Thompson. David DeSpain,of Fort Worth, Texas Ellen Emmerich, Germany, for father Ben Emmerich Sarah Coury of Sarasota, Florida Ref: Alan E. Perry Mikael Seierup, Denmark. for his father Jodie Adams, and grandson, Jason Adams, of Boise, Idaho. Catherine Young of Oak View, CA, for Cpt. James Whittier Morrill Graham L. Jones of Cambridge, UK Jiro Higuchi, Kamakura, Japan Wes Boyce of Fairport, New York N. Thomas Sheahan, designer Nicolai Donchi, Monza, Italy for Grandfather Francis Donchi Darbie family, Cincinnati, Ohio. For Arthur M. Darbie Bill Geren of Dallas, Texas. Joy Payle of Alexandria, Virginia. William (Bill) Boas of Wray, Colorado Marilyn D. (Stobbs) Ulrich of 0'Fallon, Missouri Judy Gorin of St. Louis, Missouri, for Charles Meyerson Henry Eck for Mary Elizabeth Exley, Catonsville, Maryland Nancy H. Goody for Robert G. Goody Albany, New York Mike Konshak for Susan E. and Leslie (Les) Konshak Ron Pierce for Finley Pearce, Littleton, Colorado Carl R. Wern, George H. Wern and Lars A. Wern of Sweden. Raymond DuBois for Frank Barnett.Camas, Washington. Neil Halsey, for father Peter J. Halsey, UK Barbara Oppliger for Melvin Oppliger. Midge Levy and son Benjamin Levy, Seattle, Washinbgton. Lynn Ingram of Maudlin, South Carolina Barry J. Altman of Plymouth, Minnesota. Mary Ann Schwartz for Ronald J. Schwartz, Pennsylvania Karl W. Kornchuk of Caribou, Maine. Rick Mandrell for father Thomas C. Mandrell Randy Shrimplin, Okeechobee, Florida. Al White, Colorado Dorinda Wong of Pleasanton, CA Jeannette Lyon for Jesse (Bud) Blount Lyon, Florida Joseph J. Graf III, grandson of James J. Graf, Sr. Roberta Rosty for Stephen Joseph Rosty, New Jersey Ken Jackson of Boulder, CO. Ana E. Olson, Robert Olson's daughter-in-law Nick Kratz, for g'father R.W. Kratz, Sr. California Shirley Brooks for Peter Brooks. Jacksonvill, FL, Original Owner: Peter Brooks Morton Ellen Hathaway, Indian Head park, Illinois Judith B. King for Arnold D. Strausman, Miami Shoes, Florida. Alice Bowling Robert N. Curry, Louisville, Kentucky. Arthur Anderson, Boulder, Colorado Keith Capp for Donald Capp, Sr.,San Diego, CA G. Jeffroy Bauman, G. Jeffery, Royerford, Pensylvania A. Joseph Killian for Col. Joseph Oschenschlager Killian Martha H. Prince for John Prince, Tuscon, AZ Robert Edmonds for father Dean Keith Edmonds. Colorado Peter D. Eickenberry Sr., Washington James H. Price, Washington Lyle Wells of Henderson, Nevada Emily Castellucci Ohio. used by David and Teddy Katherine Champe Jones, Virginia for father George W. Champe Steve Stewart.for father R.L. Stewart Family of Leroy G. Hausler, Colorado Christopher K. Anderson, Massachusetts Andrew (Andy) David Keller (deceased) Susan H. Wise for Husband Harold J. Wise. Illinois Keith and Les Wiley for father, California Joseph J. Graf III for Grandfather. North Carolina Andrew Cunningham for Brian C. Cunningham, Australia. Barbara Cunningham for Brian C. Cunningham, Australia. Nancy Morris, Arizona for Dustin E. Morris Marylyn Ulrich, of Missouri for George W. Ulrich Marie Sayre Cole of NY, for father C.L. Sayre Jr. Rob Snider. Belonged To Father Homer D. Snider Linda Boclair, NJ for father Spafford W. Schanck Bill Teer, Virginia Carol Summer, UK Randy Rash for father, Chuck Rash Ann Morton, for father Henry S. Morton Jay K. Wright, Washington, D.C. Tim Patterson, for father Gregory J. Patterson Enid Hodes, New Jersey, for father Gerard H.Holzrichter Laryy Hodes, New Jersey David Barnishim, Ohio Janet L. Dubane, New Jersey, for father Merle (Mike) Walker Jane Northcote, UK Mark Mazzella, New York for Howard Nelson Richard Plastino, Colorado Maureen White, Minnissota for Uncle Phillip C. Murray Robert Snyder, California for father Earl Snyder Susan Jackson, Colorado for father Jim Rodgers Barbara Emmett, Texas, for father W.P.Morris R. Jeff Smith, Wisconson R. Jeff Smith, WI for father Robert J. Smith Carolyn Diviancchi, MA for father E.B. Randall Susanne Petersson, Illinois Michael P. Maloney, Washington Robert L. Allison, Washington Ron Dies, Canada Pamela L.W. Browne, North Carolina Laurie Deiter for father H.McFadden, Colorado Barbara Campbell for Reed Campbell, California Stephanie Huang, Arizona Bram Wouters, Arizona Peter Chmielowiec, Colorado Russell Anthony, Colorado Dr. Di Chen, Minnissota Henry Benoit, Canada Georgia Iron Works Danforth (Danny) W. Hagler Thomas H Sheahan, Tennessee Mike Medlock, Indiana Shell Thuet, California (Deceased) Ann Kilby, Washington Wallace E. Kane, Washington Vern Estes, Colorado Carlee Heit (for Ray Heit), Texas Zdenka Novosad, PhD., Colorado Dan Marcotte, New hampshire John L. Crawley, III, Virginia Robert E. Eaton, Colorado Russell Fox, Alaska Ruth Moyer, Virginia Ed Millis, Texas David Viscusi, California Bill Boas, Colorado Family of Glen Williams, Georgia Marnie Shepperd, Arizona Nancy Day for Bruce Day, Missouri Anne Hollek for A. Jacobson Enn Veskimets, Maryland K.C. Schwarz, Colorado James Robert Weber (Estate), Colorado Shiela Russek for Roman Russek, Canada Jason McHenry, Arizona Children of Norman D. Fulton Jr, Ohio Marten C. Jensen Ric Turley for Roy Wood, Colorado Bruce Chelf, Indiana Amin Aur, Oklahoma	Andreas Faßbender, Germany Jaroslav kramer Marvin Clarence, Indonesia Mike Syphers, Illinois Marc-Yvon Comeau, Montreal Ric Barline, California Philip Stanley, Massachussettes Douglas Harland Paul Ross, SRTCo Ralph T. Soule. Tom Gahl David Hilton, California Patrick Coyle, UK Giovanni Breda, Italy Foo Cheow Ming Steven Decker Jorge Fabregas, Spain Steve Searle, Tennessee Greg Scott, Australia JAcek Szowski, Poland Kent Berglund PhD, Illinois David Rance, The Netherlands John J.G. Savard, Canada Peter M. Hopp, United Kingdom David Riches, United Kingdom Nathan Zeldes, Israel Nicola Marras, Italy Peter Holland, Germany Gonzalo Martin, France Ron Kuc, Pennsylvania Olivier Cassou, France Roger Miller, Colorado Paul Roller Michaelis Ph.D.,Colorado Rick Mandrell, USA Franco Maddaleno, Italy Clay Castleberry, California Orion Miller, Tennessee Steve Treadwell Mark Armbrust, Colorado Tom Dilatush, California Rod Lovett, United Kingdom Cory Fletcher Atsushi Tomozawa. Japan Paul Tarantolo, Texas Ted White, USA Iowa State University Library Clark McCoy, California Ron Knapp, California Billy Guthrie John Sykes, United Kingdom Walter Shawlee, Canada Cyril Catt. Australia Paul Ceruzzi, National Air And Space Museum Bob Denny John Krijnen, Netherlands Art Kautz Kip Ryan Larry Kehl Jan Pratt
Tier 1 donations are used to support the website presence and ongoing related expenses and to build public exhibits. Any excess may be used for new acquisitions. Specimens specifically donated for fund raisers fall into Tier 1. Funds from Sale of gifted slide rule(s). Cummulative Giving Key + $5+ donor $10+ donor $25+ donor $50+ donor $100+ donor $250+ donor $500+ donor $1000+ donor	Tier 2 donations are used to support the slide rule loaner program, to add to the galleries and expand exhibits. At the discretion of the curator, when duplicates are received they may become part of Tier 1 to finance shipping slide rules to schools and to obtain additional specimens. KEEP ISRM FREE!	Tier 3 donations are items entrusted by families associated with individials and the scans and provenance become part of a permanant website for historicalpreservation. The specimens may be transferred to another institution at the discretion of the curator and may be used in exhibits. In some cases, numerous duplicates of specimens received may be deaccessioned and sold to individuals to support Tier 2.	Tier 4 donations are electronic files used to expand the knowledge base of the on-line galleries and my be edited, altered or discarded at the discretion of the curator or webmaster.

Our apologies but we are rebuilding this list so if we have not acknowledged your contributions please let us know.

Copyright © 2003-
International Slide Rule Museum

ates of common specimens received may be used to support Tier 2, as long as there are other slide rules from that family so we can continue to honor the past owners. Tier 4 donations are electronic files used to expand the knowledge base of the on-line galleries and my be edited, altered or discarded at the discretion of the curator or webmaster. Our apologies but we are rebuilding this list so if we have not acknowledged your contributions please let us know.

Copyright © 2003-
International Slide Rule Museum

common specimens received may be used to support Tier 2, as long as there are other slide rules from that family so we can continue to honor the past owners. Tier 4 donations are electronic files used to expand the knowledge base of the on-line galleries and my be edited, altered or discarded at the discretion of the curator or webmaster. Our apologies but we are rebuilding this list so if we have not acknowledged your contributions please let us know.

PATRONS AND FRIENDSOF THE MUSEUM

Financial, Physical, Heritage and Virtual Donors

PATRONS AND FRIENDS
OF THE MUSEUM