je suis la mère de l'une (with an apostrophe): I am the mother of one of them ; je suis la mère de la lune : I am the mother of the moon.
Of the people, of the people, of the people. -or simply-People, people, people.
it means "I am from Paris"
I'm doing research (there is the implied meaning that it is my job)
I think it's The Whale by Roger McGuinn and it may well have been on the album Cardiff Rose but I'm not sure. I know I have a copy of it somewhere here