These are the strongest matches using the 1800-1850 timeframe
Hiram B Blackston
United States Census, 1850
birth: 1846 New Jersey
residence: 1850 Medford, Burlington, New Jersey, United States
other: John Blackston, Louisa Blackston, Elias W Blackston, William D Blackston, Louisa F Blackston, Mary Blackston
Hiram Blackstone
United States Census, 1850
birth: 1812 Ohio
residence: 1850 Boone county, part of, Boone, Indiana, United States
other: Katherine Blackstone, Thomas Blackstone, Daniel Blackstone, William Blackstone, Jane Blackstone, Jemima Blackstone...
Hyram Blackston
United States Census, 1850
birth: 1838 South Carolina
residence: 1850 Pickens county, Pickens, South Carolina, United States
other: Mary Blackston, Tho Blackston, Martha Blackston, Judith Blackston
Hiram Blackstone
United States Census, 1850
birth: 1840 Maine
residence: 1850 Pownal, Cumberland, Maine, United States
other: James Blackstone, Nancy Blackstone, Harriet Blackstone, Jones Blackstone, Hellen Blackstone, James K P Blackstone
Hiram G Blackstone
United States Census, 1850
birth: 1849 Maine
residence: 1850 Blanchard, Piscataquis, Maine, United States
other: Benjamin Blackstone, Mary Ann Blackstone, Julia Ann Blackstone, Adaline Blackstone, Henry Blackstone, Franklin C Blackstone...
Hiram Blaksby
United States Census, 1840
residence: 1840 Portage, Allegany, New York, United States
William Hiram Blackston
Michigan Marriages, 1868-1925
birth: 1839 Hocking Co., Ohio
marriage: 14 December 1880 Grout Twp, Gladwin, Michigan
spouse: Eliza Roby
Hiram Blackston
Father
South Carolina Deaths, 1915-1965
birth: Sc
spouse: Maryelie Brayeale
child: William Andrew Blackston
other: Cresy Hudson
William Hiram Blackston
Michigan Marriages, 1822-1995
marriage: 14 December 1880 Grout Twp, Gladwin, Michigan
spouse: Eliza Roby