Maps & atlases are useful both for locating lots and for descriptions of early towns, industries and historic buildings. Most are well illustrated and contain directories of business and professional people.The library owns the complete set of illustrated historical atlases of Ontario counties for 1870-1880.LHC 929.37133 His Mini-Atlas of early settlers in the District of Niagara. March 1983, revised edition November 1983. Covers the years 1782-1876LHC 971.339 N577 Town lots in Newark. Niagara Historical Society No. 27 p 11-13. Covers year 1795LHC 971.339 N577 Town lots in Newark. Niagara Historical Society No. 27 p 14-17. Covers year 1800LHC 971.339 N577 Map of town used after 1826. Niagara Historical Society No. 27 p26-29. Covers year 1826LHC 971.13 Tra Trace, Mary. Guide to Southern Ontario Place names for family researchers. Covers years 1875-1881LHC Periodical Bertie Township Map. Notes from Niagara. volume 2 # 2 1982. Covers year 1876LHC Periodical Niagara Township Map. Notes from Niagara. volume 3 # 3 1983. Covers year 1876LHC 911.71338 Ill Illustrated historical atlas of the counties of Lincoln and Welland. Covers the year 1876Ready Reference 929.1713 Rob Robbins, Douglas A. A. Genealogist's guide to Ontario's Counties and townships