"William David Coleman". Liberia: Past and Present of Africa's Oldest Republic. June 16, 2008. Archived from the original on 2020-02-26. Retrieved 2008-09-27.
"William David Coleman". Liberia: Past and Present of Africa's Oldest Republic. June 16, 2008. Archived from the original on 2020-02-26. Retrieved 2008-09-27.