Solomon Kullback

American cryptanalyst and mathematician, who was one of the first three employees hired by William F. Friedman at the US Army's Signal Intelligence Service (SIS) in the 1930s.

SOURCE: http://en.wikipedia.org/wiki/Solomon_Kullback

Obituary:

"...Survivors include his wife, Lola Witt Kullback of Silver Spring; two children from his first marriage, Joseph Henry Kullback of Gaithersburg and Sally K. Dodge of Rolla, Mo.; a brother, Albert Kullback of West Palm Beach, Fla.; four grandchildren; and four great-grandchildren..."

SOURCE: http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=78291309

1940 United States Federal Census

Solomon Kullback State: District of ColumbiaCounty: District of ColumbiaEnum. District: 1-227APage: 18BFamily: 113Line: 52