

Can you cross reference a visa number?

At this point in time, the Ancestry database does not have a spot for visa numbers. However, the later passenger lists does indicate whether the person has a passport, visa, or other document, such as a transit certificate.

Border crossing from Canada to New England records? Early Canadians -did they have to naturalize?

Immigrants were never compelled to become naturalized citizens. However, if they were Canadian-born, after 1790, they would have had to become naturalized if they wanted to be American citizens capable of voting. Your question does not state when your ancestors came from Canada to New England. If they came before the Revolutionary War, they would not have needed to naturalize. Assuming that they came later, there are two sets of Canadian border crossing records available from the National Archives: "Index to Canadian Border Entries, St. Albans, VT, 1895-1924, and 1924-1952. I am not aware of crossing records before 1895.