The P.E.I. Museum and Heritage Foundation has commissioned a reprint of Meagham's Atlas (1880), the most comprehensive property atlas ever published on Prince Edward Island. It goes on sale today at various museums, and bookstores around the island.
Meanwhile, you can search the atlas by surname and town/lot number online at the following websites -
Searchable database of the Patron's List/Directory of the 1880 "Meacham's Illustrated Historical Atlas of Prince Edward Island". Searchable by town/lot and surname http://www.islandregister.com/meachams/patronindex.html