Born in Shawnee, Oklahoma. Attended Southern Methodist University in Dallas. Married Marilyn Beaver June 29, 1951. They have two sons. Employed in marketing with Minnesota Mining and Manufacturing (3M) from 1956 until retirement in 1990.
Rockholt began collecting in the early 1950's. He collected all series, cents through dollars, before deciding to specialize. He assembled an important collection of fractional currency buying collections from Matt Rothert, Dr. Kenneth Sartoris and George Wait. Highlights from this collection were sold at auction by NASCA September 12, 1981.
Rockholt contributed articles on paper money errors to Coin World and Numismatic News. He was a contributor to the books on paper money by William Donlon. Author of Minnesota Obsolete Notes and Scrip issued in 1973 at $7.50. It was published by the Society of Paper Money Collectors. Author of United States Department of Agriculture Food Stamp and Food Coupon Program 1939 to 199-!.
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Minnesota Obsolete Notes and Scrip, by R. H. ("Rocky") Rockholt.