John Cairns and Peggy Milloy had 13 children. As these children matured they found a paucity of affordable farmland in York County. Further west, in Bruce County, three treaties were signed between the crown and the indigenous tribes in the area (Chippewa and Saugene Indians) between 1834 and 1854. In 1855 the land was surveyed and in 1856 lots and farm lots were put up for sale.

This available farmland attracted many of the children, and their cousins to make the move to Bruce County.

Cairns in Port Elgin Cemetary-Sanctuary Park
https://www.findagrave.com/cemetery/1998289/memorial-search?firstname=&middlename=&lastname=cairns&cemeteryName=Sanctuary+Park+Cemetery&birthyear=&birthyearfilter=&deathyear=&deathyearfilter=&memorialid=&mcid=&linkedToName=&datefilter=&orderby=r&plot=&page=1#sr-64557920