Probate records refer to wills, inventories, letters of administration and guardianship. They are usually held at the county courthouse unless archived and they are indexed by the name of the testator.
Make a list of all living relatives before you start your genealogy research. Interview as many of them as possible. Be prepared with a list of questions. Use a tape recorder for the answers or take very good notes. Respect the person's privacy.
The 1940 Census lists answers to several new questions never asked before including where they lived in 1935 and what was their income for the previous year.
Collective naturalization is a process used when a government acquires the territory of a foreign government by treaty or cession, and the inhabitants receive the rights and privileges of citizenship.
Federal Census records are available to the public 72 years after they are taken.