Family Archive #224, Marriage Index: Maryland 1655-1850, "CD-ROM," This record can be found at the County Courthouse Frederick, Maryland & Family History Library, Salt Lake City, UT, Film # 0014082.
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Family Archive #004, Marriage Index: Maryland, NC, VA, 1624-1915, "CD-ROM," This marriage index shows their names spelled as "Mary Smith and John Arndperger", obviously a misspelling of his last name.