Hattie married William Arthur Prochnow 1 Aug 1936, Cook, Illinois, USA. William (son of Wilhelm Prochnow and Emilie B. C. Pergande) was born 22 Nov 1887, Skokie, Cook, Illinois, USA; died 20 Jun 1970, Arlington Heights, Cook, Illinois, USA; was buried 23 Jun 1970. [Group Sheet]