Found marriage record for him and Mathilda.....There is a F/G for a Charles Moseman Rounds B 1868 D 1945 but it lists a different wife...was he married more than once??
"Texas Marriages, 1837-1973", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:VK1P-P9N : 22 January 2020), C. M. Rounds, 1890.
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