I don't know anything about Mary Jane's parents, but was wondering about her brother, Riley. Do you know if he moved to Wisconsin to homestead - probably around 1852 or so? If this is the same family, a g-g-grand uncle of mine, Benjamin Scott, was living with Riley in Wisconsin in 1860. Scott was also from Ohio and married Laura Holly, who is actually the one in my blood line.
I keep running across connections between the Holly and Manly/Manley families--do you know where this might come from? The only direct connection I know of is through a Polly Manley who married Jonah Filley--their daughter, Laura Filley, married Walter Holly. My Holly family comes from northeastern Ohio and before that, Connecticut.