• Green Flake traveled in the 1847 Brigham Young Company and was part of the 14th Company of Ten led by Joseph Matthews. He was labeled in several journals as "a black man."

Brigham Young Vanguard Company (1847)

• Age at Departure: 19

Sources

• Albert P. Rockwood journals, 1847-1853, Journal, 1847 April-July.
• Amasa M. Lyman collection, 1832-1877,  Journal, 1847 April 8-September 10, 1-26 and 1-10. Events recorded by Albert Carrington.
• Benjamin Kiser, "Green Flake biography."
• "Funeral of Green Flake," Deseret Evening News , 31 Oct. 1903, 9.
• "Green Flake Passes Away: Pioneer Colored Man Dies at the Home of His Son in Idaho Falls," Deseret Evening News, 22 October 1903, 1.
• Green Flake in The Book of the Pioneers Volume 1 (Utah Semi-Centennial Commission, 1897), 242.
• Heber C. Kimball journal in Heber C. Kimball papers, 1837-1866.
• Howard Egan, Pioneering the West, 1846 to 1878, edited and compiled by William M. Egan (1917), 21-105.
• "Slavery in Utah," The Broad Ax, 25 March 1899.
• Thomas Bullock journals, 1843-1849, Journal, 1847 April-June.
• Utah State History Cemeteries and Burials Database.
• William Clayton diaries, 1846-1853, Folder contents: (2) Volume 2, 1847.