There is several genealogies in the book "Heritage years, a History of Stirling and District" on your Mumby line.
I am looking for the line of Elizabeth Ann Mumby born 1815 in Lincolnshire and married Charles Cooke in Scawby in 1842. The family came to Canada circa 1870 and settled in the Stirling, Ontario area. It has been said that she was related to the Springbrook Mumbys but I have yet to find the connection. Would you have anything on her?