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Plaque for Gemini 5 (NASA mission page) circa 2017. It reads

GEMINI V
August 21-29, 1965
Astronauts: L. Gordon Cooper, Jr., & Charles P. Conrad, Jr.
190 hours, 56 minutes -- 119 revolutions

Pete Conrad actually had no middle name (or middle initial, "P" or otherwise). His mother wanted to name him "Peter", but his father wanted to name him "Charles Jr." His birth certificate reads "Charles Conrad Jr." but he was most commonly called "Pete".