hmmm... this thread is making me nervous. Only because I am sponsoring my wife and she didn't really provide one. Let me explain - she was born in Korea and moved to the US at an early age. She has some old Family Household Register that Korea used to record births. She has an english copy of it that her family used to immigrate to the US. We ended up providing that and a copy of her US Certificate of Citizenship, which is a document issued by the US government when you become a naturalized citizen. I called CIC and asked if this is enough and the person on the phone said that it *should* be fine. I hope it is....