Birth Name: Gladys Georgianna Greene
Place of Birth: Plattsburgh, New York, U.S.
Date of Birth: October 17, 1900
Ethnicity: English, Norwegian
Jean Arthur was an American film actress who is best remembered for her roles in Mr. “Deeds Goes to Town”, “You Can’t Take It With You”, and “Mr. Smith Goes to Washington”, which were directed by the legendary Frank Capra. She was born Gladys Georgianna Greene in Plattsburgh, New York on October 17, 1900.
Her paternal grandfather was Sidney Thomas Greene and her paternal grandmother was Mary E. Clark. They were born in Vermont and their ancestors were of English heritage.
Her maternal grandfather was Henry P. Nelson and her maternal grandmother was Anne Jørgine Johannesdatter. Both were immigrants from Norway.
Here are two links to her family tree:
http://freepages.genealogy.rootsweb.ancestry.com/~battle/celeb/arthur.htm