Filter Listings Alphabetically (by First Name): select letter from index (above).
Search All Listings: listing Index (above) must be cleared of any previous index searches. Click/select "Show All" to clear any previous index listings if available.
Search Listings by/within Index Letter: select the index letter (above) of choice, and then submit subsequent search. Example: Selecting "C" and then searching the name "Smith" will limit that search to the current "C" listing results.