Harry Wykoff was born on 1. Sep. 1879 at Illinois. He was the son of
Charles Wykoff and
Charlotte F. Cross. Harry Wykoff married
Estelle A. Braden, daughter of
Mary (Unknown), c 1900. Harry Wykoff was shown in the census on 2. Jun. 1900 as a restaurant owner.
Harry Wykoff and
Estelle A. Braden appeared on the census of 2. Jun. 1900 at with her parents, Maroa, Decatur County, Illinois. Harry Wykoff was shown in the census on 18. Apr. 1910 as a salesman, dry goods store.
Harry Wykoff and
Estelle A. Braden appeared on the census of 18. Apr. 1910 at Decatur, Macon County, Illinois; 2 children, 2 living.
Harry Wykoff appeared on the census of 20. Apr. 1910 at with his parents, Decatur, Macon County, Illinois. Harry Wykoff was shown in the census on 20. Apr. 1910 as a salesman, department store.

Harry Wykoff was shown in the census on 5. Jan. 1920 as a salesman, oil stocks.
Harry Wykoff and
Estelle A. Braden appeared on the census of 5. Jan. 1920 at Decatur, Decatur County, Illinois. Harry Wykoff was shown in the census on 18. Apr. 1930 as a manager, confectionary.
Harry Wykoff and
Estelle A. Braden appeared on the census of 18. Apr. 1930 at Decatur, Decatur County, Illinois; real estate value 7,000.00.