William Allen orange Co. IN 1869

I am looking for Allens.My ggrandfather George Washington Allen b 1869 d 1939. He married a Martha Lake d 1943 in IL. George W. father was William and his Mother was Sarah Elizabeth Brown.I understandWilliam was married several times and a lot of siblings.I found a William and Sarah in the 1870 Census in Orange Co. IN that had a year old son George.I would apprecieate and information anyone would share.I to possible Martha Lake had family in Sikeston, MO.Estella Auerswald email me at gauers@earthlink.net