- Explorers (American)
- Religious Society of Friends (Quaker)
The following, adapted from the Chicago Manual of Style, 15th edition, is the preferred citation for this entry.
Kaye A. Walker, “Blackburn, Ephraim,” Handbook of Texas Online, accessed December 02, 2021, https://www.tshaonline.org/handbook/entries/blackburn-ephraim.
Published by the Texas State Historical Association.
- November 1, 1994