Doing a general Robertson survey, hoping to find a family that may match up to ours. Our ancestor was an orphan & didn't leave much information about his people for us to research.

Looking for Robertsons who may have lived in Montgomery county, Litchfield area?, between 1890 and 1915. Interested in information on ANY Robertson families in this area. Also please notify if any Jenkins families are found.
Specifically, looking for the family of a child named Melvin R. Robertson born in May 1894, parents' names unknown.

Did Illinois happen to take census listings like Kansas used to do (every 10 years on years ending in '5' from 1885 to 1925)?

James A. Robertson and Cora W. Benepo married 21 Sep 1879 in Montgomery County, Illinois.

1880 census: James and Cora Robertson are found on census for Dist. 154, Litchfield, Montgomery County, Illinois.

1900 census: M.R. Robertson, age 6, b. May 1894 in Illinois, son of J.A. and C.W. Robertson found on census for Dist. 163, Dewey, Oklahoma County, Oklahoma.

1910 census: Melvin Robertson, age 15, b. Illinois, son of J.A. and Cora Robertson found on census for Dist. 192, Elk, Oklahoma County, Oklahoma.

If you're still looking, I hope this is helpful.