Proper Nouns extension for A-Z Listing

Customise the A-Z Listing plugin for WordPress to support names or “Proper Nouns”. Items in the listing will be indexed by the first letter of the last word in the title.

For example, an item with a title of Albert Einstein will be indexed by the letter E. It is not currently possible to correctly index a last name that has a prefix. For example James Van Der Beek would be indexed by B not the correct V.