My mother's mother was Ada Louise Routh. Ada's father was Lancelot Routh, b. 1852, d. 1928. Lancelot's father was John Routh, b. Oct 18, 1831; d. Feb. 13, 1905; John's father was William Routh, b. May 16, 1776. William's father was Lancelot Routh, b. 1739. Lancelot's father was Gervais of Pollington, I believe. According to A Short History of the Family of Routh, there are a major and a minor branch of the Routh family associated with the area called Pollington, but I haven't been able to make a connection.
I don't think that this tree helps you, but if you can make a connection with the Routh family in Britain, this book may be helpful to you.
Let me know if you think there's anything more I can tell you.