The only Anna Potts I can find in Chicago censuses is a married Anna Potts. Could it be that they weren't really married -- she might just have been a mistress or a romance following the death of her husband? This Anna Potts, who lived in Evanston in 1942, was married to Dr. Herbert Potts, and mother to William, Marshall, and Suzanne. Herbert died October 7, 1942. This Dr. Herbert was a dentist and professor emeritus of oral surgerty at Northwestern University; his obit was printed in the Bloomington, IL Pantagraph. Also in the Chicago Tribune.
Anna married John Patrick Viskocil IV, son of John Viskocil III and Elizabeth Bertha Bilek. (John Patrick Viskocil IV was born on 17 Apr 1890 in Chicago, Cook , IL, USA 14,92,424,461,462,463, christened chicago, died on 18 Jul 1944 in Chicago, Cook , IL, USA 31,54,63 and was buried on 21 Jul 1944 in Cedar Park Cemetery, Calumet Park, Cook County, IL 1,31.)
I don't know how many John Vyskocils there were in Chicago who were born in 1890, but there is record of someone matching this description marrying Victorie Zufan on 1-16-1916 in Chicago. And there's a John "Maroney, b. 1870, who married an Anna Wilson on June 22, 1918 in Chicago.