There are 3 places named Williamson Island in Canada.
All places in the world called "Williamson Island".
Wellington (4)
Windsor (4)
Kingston (3)
Victoria (3)
Havelock (3)
Centreville (3)
Sidney (3)
Borden (3)
Princeton (3)
Westport (3)
Milton (3)
Richmond (3)
Benton (3)
Saint Andrews (3)
Selkirk (3)
Tracadie (3)
Beaver Crossing (2)
Campbellton (2)
Coronation (2)
Fauquier (2)
Herschel (2)
Lomond (2)
Newport (2)
Rosedale (2)
Seaforth (2)
Tiverton (2)
Whitney (2)
Albany (2)
Bon Accord (2)
Chatham (2)