John C Threadgill and Mary E Duplain were married on June 30, 1979 in Dallas County, Texas.
At the time of their marriage, John was 25 and Mary was 21. This marriage was recorded with State File Number 077800.
If still married, John and Mary would be celebrating 47 years of marriage in 2026.
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To obtain a certified copy of the marriage certificate, contact the Dallas County Clerk's Office or the Texas DSHS Vital Statistics office.