M.L. Walker is the son of Rebecca who was living with him in 1850. Rebecca Walker was the wife of Robert Walker who died 1825. Rebecca died 1860, and in the last will, she mentions her children, M.L., Rebecca Rike, Margaret Dunn, and Mary Murphy. M.L. is Michael Lorenzo and he ended up in Wapello County, Iowa. Rebecca ended up in Hamilton county, Ohio, Margaret Dunn ended up in Wapello county, Iowa and Mary Murphy ended up in Highland county, Ohio. From 1880 censuses all the daughters state that their parents were both New Jersey. Futhermore on Rebecca Rike's obit it gives her father as Robert with a officer rank.