I doubt that this is stil relevant but I can't sleep so...
I'm hispanic and while I've never heard of a man taking on his wifes last name women usually go like this (slight tranlation)
Jane Doe marries John Smith she becomes Jane Doe of Smith
Also what usually happens when they have a child that child would both last names with the fathers last name coming first followed by the mothers. When they get married the woman drops the mothers last name, like if this couple had a child it could be something like this
Ana Smith Doe she married bill white she is now ana smith of white and their son will be named Charles white smith.
I have two last names so ive had to explain this a lot. Oddly my parents had the same last name so I have the same last name twice. It was really fun explaining to my classmates that my parents are not related.
