Medlar was born in Dayton, Ohio in 1922 and passed away on 1/4/1991. Best known as a collector of Texas banknotes, he began collecting in 1950. He was the owner of the Glascock Supply Company, distributer of numismatic books and supplies. Medlar was a charter member of the Society of Paper Money Collectors and served as vice president 1971 to 1975 and as president 1975 to 1979. He was the top recruiter from 1977 to 1979 and wrote 14 articles for Paper Money. He served on the Assay Commission for 1969.He also served as chief assayer for the Old Timer Assay Commissioners Society.