Note: If a surname had a prefix (other than "O", "Mac" or "Mc"), the name may have been listed either with or without the prefix. For example, "VanRyan" would probably be coded as "V565" (using the "Van") but may have been coded as "R500" (dropping the "Van").
Catalog records of microfilm at MDAH using Soundex coding
List of Soundex Census Indexes at MDAH