Townships were largely translated into Civil Parishes during the later 19th century. They must have entered the 1841 census for Carr House as part of Iviston township as a matter of convenience, but not strictly correctly. It is the large black italic lettering which denotes the township and the boundary of this detached piece is the dot/dash line along the north side of the road, labelled FW meaning the boundary is at the foot of the wall, plus a short length Und(efined). Iveston township lies to the south of the wall, with a note that it also has 229 acres of detached portions elsewhere. (Most of this kind of detached area was "tidied up" by the Divided Parishes Acts from about 1870 onwards.)