Introduction to Early Banjo History: a survey of the gourd banjo in colonial America
by Clifton Hicks
Sources:
BANJO ROOTS AND BRANCHES
ed. Robert Winans (2018)
AMERICA'S INSTRUMENT: THE BANJO IN THE NINETEENTH CENTURY
Philip Gura and James Bollman (1999)
SINFUL TUNES AND SPIRITUALS: BLACK FOLK MUSIC TO THE CIVIL WAR
Dena Epstein (1977)
BanjoHeritage.com
https://banjoheritage.com