My OH and I have chosen
Naomi Margaret Mary if it's a girl. Margaret and Mary are the two Grannies.
__________ Gilbert Valentine if it's a boy. Gilbert and Valentine are the two Grandads - which is why we've picked two such naff names. Only thing is that we can't choose a boy's name beginning with H as the initials will be HGV - Heavy Goods Vehicle! I kind of like Ciarán but OH isn't gone on it.
Here, second and third names aren't really used that much, except on official documents and/or for exams or weddings...and you don't have to use all your names if you are getting married. Me and OH didn't...
My name is Susan Elizabeth Mary Teresa (four names, I know).
My OH, who is shy, doesn't want me to tell you his first name, but in the old Catholic tradition, his parents bestowed upon him and all his siblings the second name of...Mary!
So we didn't use his full name at our wedding.
His father's second names are Mary and Joseph, he spent all his time in school being called Mary Jo - and it STILL didn't dissuade him from calling his two sons Mary as a second name.
What a family!
Sue