Submitting a query to IGS can be like "crowd sourcing" your research. An example is the following reply to our Baker query below. Our Rush County ICG Pam Steed enlisted a cohort Susan Huston to do some digging, and Bill Baker may have a new research line to follow. Good going to our IGS "crowd!"
Your query to Ron Darrah regarding your ancestor, Stephen Baker, has made its way to me to try to assist you in identifying Stephen's parents.
From the website FamilySearch.org, I was able to obtain the 1870 census, which I have attached (email). My interpretation of the data is that Stephen was born in Kentucky. It appears from the names and ages of the others listed in his household, that Stephen lived with his wife and son as well as a person who could well be his mother (Catherine, age 56, b in Kentucky), a sister (Cordelia Williams, age 18, b in Kentucky) and a niece (Ida Belle Williams, age 1).
A suggestion for further research would be to track Catherine and Cordelia.
Best of luck to you.