- Member of College Class of 1865 (non-graduate)
- Member of Philomathean Society
Constantine Hering Williamson was born on September 3, 1844 to Walter Williamson, M.D. 1832, and Mary Matilda Massey.
Williamson entered the University of Pennsylvania in 1861 as a freshman in the College Class of 1865. He joined the Philomathean Society before leaving at the close of the first term of his sophomore year.
After college, Williamson worked as a conveyancer and clerk. He died on September 28, 1908, in Philadelphia.