Mary was born after 1818. She passed away after 1912.
"United States Census, 1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MD27-2Q2 : 9 September 2017), Mary Duck in entry for George C Duck, 1880; citing enumeration district ED 50, sheet 236A, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d), roll 0335; FHL microfilm 1,254,335.
Featured Auto Racers: Mary is 23 degrees from Jack Brabham, 26 degrees from Rudolf Caracciola, 15 degrees from Louis Chevrolet, 17 degrees from Dale Earnhardt, 32 degrees from Juan Manuel Fangio, 20 degrees from Betty Haig, 24 degrees from Arie Luyendyk, 21 degrees from Bruce McLaren, 17 degrees from Wendell Scott, 18 degrees from Kat Teasdale, 16 degrees from Dick Trickle and 21 degrees from Maurice Trintignant on our single family tree. Login to see how you relate to 33 million family members.