Leonard is FEMALE. The name may or may not be mis-transcribed but her gravestone says "Leonard Smith". The Find A Grave record refers to 'Leonard Smith Lord' with spouse Thomas Lord. A note says "Leonard as written on stone, Leander as written in cemetery records'.
Leonard Smith was born in 1744, the daughter of Ephraim Smith and Mary (Scott) Smith.
↑ "Massachusetts, Town Clerk, Vital and Town Records, 1626-2001," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:FHB8-T9C : 8 November 2017), Thomas Lord and Leonard Smith, 06 Nov 1760; citing Marriage, Athol, Worcester, Massachusetts, United States, , town clerk offices, Massachusetts; FHL microfilm 2,230,843.
It may be possible to confirm family relationships with Leonard by comparing test results with other carriers of her ancestors' 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 DNA with Leonard: