One of my Brick Walls is finding the parents of Charles, Manassa, Mary, and Constantine (possibly Alexander Constantine) Martin. They are in the 1850 Federal Census in Washington Township, Warren County, Ohio, with Hannah Martin, born in New Jersey, and living with Isaac and Rhoda Smith and children Hannah, Theodore and Harriet. I haven't been able to find any of them in 1860, but I do find them again in 1870. Alexander Constanine Martin is in Madison County, Iowa in 1860. Manassa is in Marion County, Indiana in 1880. We have proven that Charles and Manassa are siblings, and haven't proven A.C.