From:
https://familysearch.org/
Maybe searching more on the children will help?
U S Census, 1880 St. Louis, St. Louis, MO
SELF John Morgan M 54 OH
WIFE Hester Morgan F 54 IN
DAU Bella Morgan F 18 IL
DAU Carrie Morgan F 15 IL
DAU Blanche Morgan F 10 IL
US Census, 1870 IL
John Z Morgan M 43y OH
Hester Morgan F 43y OH
George Morgan M 18y OH
Francis Morgan M 17y OH
Edwin Morgan M 15y IL
Charles Morgan M 12y IL
Idah Morgan F 9y IL
Carrie Morgan F 6y IL
Minnie Morgan F 9m IL
Example: Death record
Name George W. Morgan
Death 14 Jan 1942 Chicago, Cook, IL
Birth 08 Nov 1850 Janesville, OH
Father John Z. Morgan Birth OH
Mother Hester Ann Havens Birth OH