Your comments about Mary and Joseph Lewellen interested me and then you through in the name Taylor which added interest.
I have a 2nd great grandmother who I think is Mary Catharine Lewellen. Her parents were Joseph Lewellen b:1811 and Emma Holmes. Joseph Lewellen b:1811 had a sister Amy/Amelia Lewellen b;1803. Their parents were Joseph Lewellen b:1782 and Mary. Joseph b:1811 had a second wife Maria/Mary.
Amy/Amelia Lewellen b;1803 married William Henry Taylor and they moved to Wells Co Indiana where she died after 1870.
To keep the Josephs going Joseph Lewellen b:1811 and Emma Holmes had a son Joseph Lewellen b:1844.
While he first two Joseph lived and died in the Philadelphia area, The lasat Joseph Lewellen b:1844 first went to Wells Co. Indiana and then to Kansas.
Does any of this fit into your family?
While I have a lot of circumstantial evidence, my goal is to get hard documentation that Mary Catharine is a Lewellen.