 On January 28, 1948, Bienvenu married the former Catherine Augusta Nelken (1927-2018), who was born in Crowley in Acadia Parish but reared in Natchitoches.She was a daughter of Lennie D. and Sylvan W. Nelken, the former dean of administration at NSU.As a girl, Catherine lived with her family in a tin-roofed house located on the hill at NSU.