You might be excluding a generation? Clyde's parents may have been Burrell H. Hambrick and Martha A. Giles? If so, then George B. Hambrick (ca. 1835) and Antonette A. Boynton were parents of Burrell (ca. 1857). That Burrell was grandson and namesake of grandfather (Burrell ca. 1810) and uncle (Burrell ca. 1837 younger brother of George). Not related!