John Leonard and Efthalia E Markopoulos were married on December 29, 1969 in Harris County, Texas.
At the time of their marriage, John was 24 and Efthalia was 22. This marriage was recorded with State File Number 138620.
If still married, John and Efthalia would be celebrating 57 years of marriage in 2026.
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To obtain a certified copy of the marriage certificate, contact the Harris County Clerk's Office or the Texas DSHS Vital Statistics office.