Robert W Ii Knappage and Sonja A Sundbye were married on August 18, 1990 in Rockwall County, Texas.
At the time of their marriage, Robert was 21 and Sonja was 24. This marriage was recorded with State File Number 093838.
If still married, Robert and Sonja would be celebrating 36 years of marriage in 2026.
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To obtain a certified copy of the marriage certificate, contact the Rockwall County Clerk's Office or the Texas DSHS Vital Statistics office.