Mary, Jerry, and Harry, for example

• Starts of 17- and 55-Across, and 11- and 29-Down, impolitely
• They're given to newborns
• They're alphabetized in address books
• Elvis and Presley
• Adam and Eve, e.g
• Mentions specifically
• A-list items
• Film credits display
• Vietnam Veterans Memorial inscriptions

Wiktionary Word definitions in Wiktionary
n. (plural of name English) vb. (en-third-person singular of: name )