The Districts of Upper Canada, 1788-1849. Ontario History, vol. 34 ( 1947), pp. 91-100. Reprinted in Profiles of a Province. Series of 4 maps from George W. Spragge, plus copies of pages of book.
Page 35: McNab Twp. in the District of Mecklenburg (1788-92) and in the District of Johnstown (1798-1821). Page 37: McNab Twp. in the County of Grenville [Grenvill] (1792-1798). Page 39: McNab Twp. in the District of Bathurst (1822-1849).
Notes
Page 41: McNab Twp. was still Bathurst after that district had been enlarged.