"New York State Census, 1855," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:K63V-FGM : 13 March 2018), Abby Sophia Crawford in household of Martin F Crawford, E.D. 1-2, Maine, Broome, New York, United States; citing p. , line #11, family #349, county clerk offices, New York; FHL microfilm 809,005.
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCTV-X53 : 12 April 2016), Abby S Crawford in household of Jane Crawford, Maine, Broome, New York, United States; citing family 211, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.).
It may be possible to confirm family relationships with Abby 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 Abby: