Bill Eckberg of Florida writes:

Bernard Alan Edison, the collector responsible for one of the all-time great collections of copper United States Half Cents, has passed away. He was 90 years old.

Better known in the wider hobby by the nom de coin "R. Tettenhorst" (which was actually the name of his secretary, to whom his packages were addressed), Bernard Edison-"Bunny" to his friends-carefully assembled hiscollection over a lifetime of business and civic success in the St. Louis, Missouri area. A member of the Edison family of Edison Brothers Stores fame, Bernard was born on March 23, 1928.

It might be worth noting that fellow St. Louis coin collector (and Edison's relative through marriage) Eric P. Newman worked as an executive vice president at the company during this same time period.

To read the complete article, see:
Bernard Alan Edison, aka "R. Tettenhorst" (1928-2018): In Memoriam(https://coinweek.com/people-in-the-news/in-memoriam/bernard-alan-edison-aka-r-tettenhorst-1928-2018-in-memoriam/)

To read the earlier E-Sylum articles, see:
BERNARD ALAN EDISON (1928-2018) (http://www.coinbooks.org/v21/esylum_v21n16a07.html)
ROSE M. TETTENHORST (1936-1989) (http://www.coinbooks.org/v21/esylum_v21n16a26.html)