In my effort to obtain French citizenship, I have been instructed by someone at the French Consulate to determine (and provide proof of) when my mother became a naturalized U.S. citizen. I am seeking advice as to how I can find that information from somewhere in the U.S. government. I do not know whom I should contact. Unfortunately, my mother and father are deceased, it is only a belief on my part that she became a U.S. citizen in the late fifties or somewhere in the 1960s. She came into the US in 1948 married to an American GI she met and fell in love with during the Second World War.

Contact USCIS. This might not be easy...