Previous ImageNext Image Ogden Mattis post office 1965 new era pg16 RIVERTON POST OFFICE as it appeared when Ogden Mattis (inset) was postmaster. The office reached second class status in 1901. The New Era, July 1, 1965, pg. 16 Share this: Share on Facebook (Opens in new window) Facebook Share on Pinterest (Opens in new window) Pinterest Email a link to a friend (Opens in new window) Email Print (Opens in new window) Print