I'm not related! Seems Aubert Marcy spent much of his life in the State Hospital at Terrell? He died there 14 Aug 1951 and death certificate online https://familysearch.org/
In 1900 Donley-Precinct 2-0025-Image 6, he was boarding in the home of Wm F O Blake. Afterwards, he's found: 1910 Kaufman-Terrell Ward 3-0031-Image 1, 1920 Kaufman-Terrell Ward 2-Image 39, 1930 Kaufman-Terrell-Image 9, and 1940 Kaufman-Terrell-(129-11)-Image 25. Death certificate indicates residency in Texas 45 years 5 months and 6 days. That agrees with the obit.