| Thomas
Ratcliff's 1859 Map of Thornhill |
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| Thomas Ratcliff's 1859 Map of Thornhill
(detail of part of Lot 30, Concession 1 Vaughan Twp.) The school can be seen near the centre of the selection. Thornhill Archives - Map Collection (M-1-14) The original map in in the Archives of Ontario Smaller image |