It is very difficult to understand the various combinations of Methodist churches. Very briefly, in 1874 the Wesleyan Methodist Church in Canada and the Methodist New Connexion Church of Canada combined to form the Methodist Church of Canada. In 1884, the Methodist Church of Canada, the Bible Christian Church in Canada, and the Methodist Episcopal Church in Canada combined to form the Methodist Church. The actual situation is much more complex, involving a number of other churches and factions. It is best understood with the aid of a map, that from Silcox, Claris E - Church Union in Canada - Institute of Social and Religious research, New York (1933). This is reproduced in OGS - Guide to Family History Research in the Archival Repositories of the United Church of Canada (1966).
In 1925, the Methodist Church in Canada, part of the Presbyterian Church of Canada and some other denominations formed the United Church of Canada.
So, in Peterborough County, we have:
Bible Christian Church in Canada to 1884
Methodist Church of Canada 1874 - 1884
Methodist Church in Canada 1884 - 1925
Methodist Episcopal Church in Canada to 1884
Methodist New Connexion Church of Canada to 1874
United Church of Canada from 1925
Wesleyan Methodist Church in Canada to 1874