Fishbourn was the son of Ralph Fishbourne and Sarah Lewis.
Before 1700, he settled in Philadelphia. There, on January 8, 1702, he married Hannah Carpenter (March 3, 1685 – July 25, 1728), daughter of Samuel Carpenter, a deputy governor of Pennsylvania. After her death, he married Jane Roberts on June 29, 1729.
- "Mayors of the City of Philadelphia 1691-2000". phila.gov. City of Philadelphia. Retrieved 22 April 2014.
|Mayor of Philadelphia