Do any of these look like your Jacob Graham Black?
Jacob Black
Head
United States Census, 1920
birth: 1868 Pennsylvania
residence: 1920 Franklin, Fayette, Pennsylvania, United States
child: Brinton Black
Jacob Black
Son
United States Census, 1880
birth: 1868 Pennsylvania, United States
residence: 1880 Allegheny, Blair, Pennsylvania, United States
father: Saml Black
mother: Sarah Black
other: Eva Black, Rachael Black, John Black, Emma Black, Anna Black, Mary Black...
Jacob Black
United States Census, 1880
birth: 1868 Pennsylvania, United States
residence: 1880 Jefferson, Fayette, Pennsylvania, United States
other: Samuel B Lynn, Florence A Lynn
Jacob Black
United States Census, 1870
birth: from 1867 to 1868 Pennsylvania
residence: 1870 Pennsylvania, United States
other: William Black, Phoebe Black, Frank Black, Emma Black, Alice Black, Angeline Black...