The family surname was written as Mahan in the church records at St John the Baptist in Perth, Ontario, by Scottish Priest, Rev. John Macdonald from 1823 to 1838.  His replacement, Rev. John McDonagh arrived from Ireland in 1838 and commenced to write their surname as Mahon in the church records. Today, some descendants use the surname Mahan, others use Mahon and still others have adopted variations including Main. 

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The records on the two remaining daughters of James and Ellen Mahon have not yet been found.  As well there are several married names which remain unknown...for now.