I found Grant G. Hubert still in Chicago in 1910, age 46, born KY, wife was Catherine.This is Grant's 2nd marriage, her first.No children in the household.
I found below info by Googling his name - may or may not be the right man:
Grant G HUBERT Ohio, Death Certificate Index, 1909–1912, 1945–1953 Certificate Number: Cert. 21814 County of Death: Clinton County Date of Death: 4/3/1932 First Name: Grant G. Last Name: Hubert Volume Number: Vol. 6881