[Facts] Re: Jacqueline / Jacquemine
Hi :) I'm French.
Jacqueline and Jacquemine are both feminine forms of Jacques (cf italian Giacomo and english James, hence the "m" in Jacquemine). Jacqueline is very frequent here, it was trendy in the 1930s/early 1940s. I know several Jacqueline and one Jacquemine; all of them are 60-something.
Both of these names are old-fashioned now, and almost no one younger than 55 years is called like this.
Bye :]