Mary's family was mentioned in "History of the Upper Ohio Valley", in a biography of her son, William Johnson:[2]
"William Johnson, one of the oldest living residents of Columbiana county, was born in Pennsylvania, September 21, 1801, and is the son of Thomas and Mary (Mapele) Johnson, who were natives of Pennsylvania and New Jersey, respectively. When he was two years of age his father was drowned, after which sad event the mother with her family, accompanied by her father's family, came to Ohio, and settled near Amsterdam, on the head waters of Yellow creek, where the grandfather entered a quarter-section of land, upon which they all lived for a time. Misfortunes overtaking the land, having fallen into other hands, the family afterward settled near Hammondsville, and from thence settled on a tract near Summerset, which they leased, and upon which they lived for some years. The family was here divided, the mother removing to a farm on Yellow creek, where, in October, 1826, William was married to Sarah Yeagley, a resident of that neighborhood, where they lived about ten or twelve years."
Based on the birth year of William Johnson, it is estimated that Mary was born no later than 1785. If she was born in New Jersey, as this biography states, Mary was probably born no later than about 1782, when her father appears to have left New Jersey.
Mary was enumerated in Jefferson County, Ohio in 1820, living next to her brother David Maple Jr:
1820 US Census - Knox Township, Jefferson County, Ohio:[3]
This family was enumerated 20 households away from David Maple, and the family does not bear an obvious resemblance to the Mary's family as recorded in 1820.
A Mary Johnston died in Knox Township in 1832.
On 31 October 1832, the estate of a Mary Johnston, deceased, of Knox Township was inventoried. The record names her heirs as : James Johnston, John Johnston, Sarah Johnston, Wm. and George Johnston.[5]
Another Mary Johnston was still living in Knox Township in 1840:
1840 US Census - New Summerset Village, Knox Twp, Jefferson County, Ohio:
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DNA Connections
It may be possible to confirm family relationships with Mary by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Mary: