Durham and Northumberland Tortoise family originally for Aylsham, Norfolk.
The first instance of a Northern Tortoise is Jemima Tortoise, born 1872 Tantobie, Tanfield, County Durham, parents Daniel Tortoise and Mary M. both from Aylsham, Norfolk. Jemima married in Newcastle-upon-Tyne, 1891. By 1891 the whole family are in Newcastle. William H. Tortoise, born Aylsham, is with the Daniel Tortoise family in Tanfield, 1881 and is an elder brother of Jemima. I had come across the name Tortoise at some time in my genealogy searches and its not a name easily forgotten. My specialty is Northwest County Durham and have done much work in the Tanfield area.
This is the only one of their children that I found a baptism record for.
Elizabeth Tortoise, Baptized: 18 NOV 1891 Benwell, Northumberland, England
Parents: Daniel Tortoise and Mary Matilda Tortoise. familyseach.org