My Monday Mystery is about my 3rd Great-Grandfather John Edgar Robertson. Who was born 10 March 1804 possibly Kentucky according to census. Died 1876 in Washington, Adams, Iowa. He married on 20 Jan 1831, place unknown. His wife was Abigail Cowen born 13 Nov 1812 place unknown. Died 22 Jul 1938 place unknown.
There is a Robert Robertson living with them in 1850 in Ohio census he could be John's brother, he was 59 years old.
The census records I have are 1850 Clinton township, Knox County, OH and 1860 Morning Sun Township, Iowa. My goal is to try and find death records but haven't had much luck with the court.
The only documents I have found are the two census records I have posted here. One is 1860Iowa census Morning Sun is the township. The other is 1850 Ohio census, Clinton township.
I have been looking for both their parents as well as their Birth and Marriage places. So far I have hit a brick wall. I have been working on this for the past several years without even a promising lead.