Good morning, I have found that the information regarding immigration year on the 1900 census is not always accurate. In fact, in my research, I have yet to find any accuracy in the year listed as immigration (according to the census) and the actual date of immigration according to either naturalizaion papers or ship lists. One of the greatest differences II have found for one of my ancestors is over ten years. Acoording to the census, he came to America in 1855, when I finally found him on a ship list, he and the ship left port 1898. Happy Bird hunting.