BGMI Mail Entry Free For All Trial Site Marjorie Knibbs Pratt 1940- Number of Source Citations:1 Who's Who of American Women. 12th edition, 1981-1982. Wilmette, IL: Marquis Who's Who, 1981. [WhoAmW 12] Source Citation: Biography and Genealogy Master Index. Farmington Hills, Mich.: Gale Group, 1980-2001.