==See also==* Logan Pass* Andrew Bell* Robert Bell==References==;Bibliography==External links==*Written in Stone: William E.Logan and the Geological Survey of Canada(English and French)*Sir William Logan 1798 - 1875*Biography at the "Dictionary of Canadian Biography Online"*William Edmond Logan (1798 - 1875): Canada's Super-Rocker!!
* Logan Pass* Andrew Bell* Robert Bell* Written in Stone: William E.Logan and the Geological Survey of Canada(English and French)* Sir William Logan 1798—1875* Biography at the "Dictionary of Canadian Biography Online"* William Edmond Logan (1798—1875): Canada’s Super-Rocker!!