'Gunsmoke’: James Arness’ Brother Was Actually a Hollywood Star
https://www.outsider.com/news/gunsmoke-james-arness-brother-was-movie-star-who-changed-last-name-for-hollywood/
WEBMar 7, 2021 · Although the two do not appear to share the same last name, James Arness and Peter Graves are brothers. In fact, Arness is the older brother. He was originally born Peter Aurness, but changed his name when he started his career in Hollywood. While James dropped the “u” in his last name, Peter Graves used the family’s maternal name instead.
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