Randy Seaver always has interesting "genealogy math/relationship" ideas for his Saturday night fun.
I (1947-) knew my maternal grandfather, Evans Stewart (1886-1955).
Evans Stewart knew his father Charles Stewart (1859-1937) and his father's mother Eliza Fish Denison (1833-1909), wife of Dudley Stewart.
Eliza Fish Denison knew her mother Levina Fish (1794-1890), wife of Isaac Dension, Jr. (1790-1855) who served in the Revolutionary War. In fact, Levina lived in the very house that he opened up to the troops returning from the Battle of Long Island (also called the Battle of Brooklyn) until she was very old. She was 95 years old when she died.