Agnes was born about 1771. She passed away about 1850.
Sources
Thomas Hamilton Revolutionary War Pension Application W7671. Found at [1]
The Church of Jesus Christ of Latter-day Saints, "Pedigree Resource File," database, FamilySearch (https://familysearch.org/ark:/61903/2:2:3WVZ-JNV : accessed 2017-11-29), entry for Mordock Otis /McKenzie/.
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