Do You Know How To Use Soundex?

Lots of genealogists use Soundex. Did you know that:

• A Soundex search for Sartorius is not the same as one for Satorius?
• A Soundex for search for Smut will catch one of the most common English language names?
• Soundex is usually not an option on first names (usually, that is)?
• Even though ONeill and Neill differ by a vowel they require separate soundex searches?

Probably old hat to most of you, but probably worth remembering for some.