I don't have a lot more, Jane Amelia Bristow was previously married to Taliaferro Mendenhall and widowed. She and Jacob married in Fountain County, IN, 28Mar1836. I believe her date of birth to be 11Mar1810 or 11 (difference between one record and tombstone) in OH. They appear together in the census until 1880 when she is found living with her son from the first marriage, Absolom Mendenhall, in Havana, Montgomery, KS and Jacob is nowhere to be found. The likely inference is that he is dead before the summer of 1880, however, when Jane dies in 1899, Absolom has her buried as Jane Mendenhall making me wonder if there was some bad blood there. Could Jacob have abandoned her or caused her to leave him. If so, where the heck did he get to?