This site is dependent upon the generosity of many who have agreed to make their time and information available to me and thus to you.  Some of those persons, organisations and companies are listed below, in mostly alphabetical order.

Terry Calvert, L. Rex Klopfenstein Jnr., Tom Ricketts, Steve Tosh, Ken Zeurcher, Dave Walters, John Sudke

United States Patent and Trademark Office.

Toledo Blade Archives

Greg Millar, Toledo Library

Ed Mikoski, EIA (Electronic Industries Alliance)

CTS Corporation (potentiometers)

George Gruhn

Walter Carter

John Hall, RIC (Rickenbacker)

Dick Boak, CF Martin

Allen-Bradley (potentiometers).

Publications’ extracts  quoted:

Donald Brosnac for Bud Rowe interview extract from ‘The Electric Guitar – Its History and Construction’