I'm looking for information on George Strong (b 1825 Scotland) and wife Martha Bishop (b 1829 Ohio) who were living in Stark County in 1860 and 1870 with their nine children. Martha's parents Samuel Bishop and Elizabeth Edwards were also living in the county in 1860, 1870 and 1880. However, George and several of the younger children moved to Texas by 1880. He married Mary Harris and was living with her and her daughter Clara in 1880 in Grayson TX, while his own daughters (ages 10-18) were scattered in TX living with other families as servants. Mary Harris and her daughter has been living in McHenry Ill in 1870.
Anyone know what happened to Martha between 1870 and 1880? Or to her parents after 1880?