Why shouldn I use middle names, titles, suffixes and prefixes in the title?
Because of names like de la Vega and Mac Laren the search will treat every word after the first word in the title as the last name. If the page were entitled Person:Henry Lewis Townsend IV it would be indexed under the last name of “Lewis Townsend IV” and not as Townsend. You can see how this would make it more difficult for your cousins to find common ancestor pages.
