Oli is correct: There's no mention of her first name in the novel or in the theatrical releases of GF and II. In a deleted scene from GF, Bonasera, after getting the call from Hagen to meet the Don at his funeral parlor, turns to his wife and says, "I curse-a the day when you and Commore Corleone became friends." I hear it as "Commore" (Godmother), but it could have been Carmela.
In III, at Michael's party, Mary presents a check for $100 million to Archbishop Gilday from, I believe, "the Vito and Carmela Corleone Foundation."
You're right on with the "Commore Corleone" from the deleted scene. That's how I understood it.
I just watched the scene in Part 3 and Mary says "Here is 100 million dollars for the poor of Sicily in the name of Vito Corleone" No mention of Carmela.
