Your HINCKLEY names are very common among the descendants of the immigrant of 1635, Samuel HINCKLEY.
George of Sandwich, MA, left will dated 1661/2.
John HINCKLEY of Albany, NY, m. Eunice WARREN, b. 11 Aug. 1799, & had fourth child, George.
Amasa HINCKLEY of Willington, CT, & Rome, NY, had son Geo., b. 1805, but he moved to Wisconsin.
Benj. HINCKLEY (1782 - 1835, Hiram, OH) m. 10 F 1806, Willington, CT, Susannah DAVIS (3 Jan. 1783 - 8 Jan. 1873), Hiram, OH).They had son George Washington HINCKLEY, b. 22 May 1825.
Silvanus HINCKLEY (1756-1841) m. 1787, Mary HOWES/HAWES, & had George (10 May 1793 - 1871) m. 13 Aug. 1820, Puella Lovell SCUDDER.
Solomon HINCKLEY (1797, Buckland, MA - 21 Dec. 1833) m. at Buckland, Theodosia BROOKS, & had son Geo. Dexter HINCKLEY b. 3 F 1825, Fredonia, NY, m. Rosannah SLAWSON.
George Wm. HINCKLEY, s/o Philip of Harwich, MA, & Edith BAKER,m. Catherine FLAVIN, b. 1830, Sandwich, MA.
Walter HINCKLEY (1823 - 99) m. Sally Eliza LEE (1825 - 1878) & had George Walter HINCKLEY, b. 27 July 1853, Guilford, CT, m. 12 Aug. 1880, Harriett Elma PALMER, b. 22 Je. 1855.They had Alice Louise, Walter Palmer, Edwd. Benj., & Faith Jayne.
Alfred HINCKLEY (1799 - 1888) m. 1824, Eliza STANLEY (1797 - 1874), & had George Wheeler HINCKLEY, b. 23 Je. 1828, m. Mary MAUK.
Oliver HINCKLEY (1792 - 1888) m. 1817, Laura SAVERY or Louisa CROCKER? (1799 - 1881) & had George Henry HINCKLEY (1823 - 1891) m. 1846, Lucinda CANNETT (1826- 1905).
George Johnson HINGLEY, b. 18 Apr. 1864, Great Village, Fall River, MA, d. 1920, had six ch.
Noah HINCKLEY (1784 - 1857, Boston) had son Geo., bu. Port Leyden, NY.
George Henry HINCKLEY m. 1846, Lucinda CONNETT, & had Geo. B. F. HINCKLEY (1848-1888) m. 1875, Sophronia Davis GREST, b. 1851. Their dau. Grace m. Wm. H. ROSS & was DAR 159398.
Charles HINCKLEY, b.1829, of Osterville, MA, had son George W., b. ca. 1854/5.
George Emmet "Pete" HINCKLEY (1845-16 May 1924) m. Mary E. ROE.
George Hallock HINCKLEY (1849 - 1901) m. Huldah QUICK.
Leonard B. HINCKLEY, d. 31 July 1864, Petersburg, VA, wounded in Ninth ME Rgt., m1. Susan SEELY of Beverly, MA; m2. Caroline PICKARD of Smyrna, ME, & had son Geo. F.
George Ranslow HINCKLEY, b. 28 Oct. 1853, Georgia, VT, m. Addie MORRIS & had in Chicago, IL, Henry Marion, Adelaide Ellen, & Charlotte Deborah HINCKLEY.
George Horace HINCKLEY, b. 1855, m. 1878, Lizzie COLEMAN.
George Stevens HINCKLEY, b. 1879, m. 1907, Edith Barrett PARKER, moved to Redlands, CA.
George HINGLEY (1874 - 1917) m. Nora CASEY of Malden, MA, & had George & Alice.
George Harris HINCKLEY, b. 12 F 1886, Calais, ME, m. 17 May 1917, Florence PEARSON, b. 1892, Portland, ME.
There are more recent Georges.These are all from E. Charles HINCKLEY's 1982 "Hinckley Heritage & History."