My mother was never wild about the fact that our surname Mattimore was actually derived from Mattimoe, also occasionally spelled without the “e” as Mattimo in Ireland. She grew up a Mattimore after all, so THAT was the name! She reluctantly assumed that somehow the name of our immigrant ancestor, Michael, changed from Mattimoe to Mattimore when he arrived, either due to an Ellis Island misspelling or a change at some later point.