I am looking for information on the children of Joseph and Persis (Parcher) Morris, who lived in Greenville sometime after being married in Hallowell in 1850.

I am also looking for the family of Aaron Jackson. He married Brittania (Gray) Pence in 1842 and had children with her, but the census lists two children born prior to their marriage, Sylvester and Caroline. I found him in the 1840 census with 6 children under the age of 20. I have found no information indicating who his first wife was, or who any of the other children were. Any ideas on where to look for information?