Morgan, Kenneth (1999). Edward Colston and Bristol. Bristol Branch of the Historical Association, Bristol, pp. 3 "To what extent Colston received money from the sale of slaves in the New World is unknown. He was undoubtedly remunerated for his work on the committees of the Royal African Company, but whether this money was the basis of his fortune remains conjectural. It is feasible that he accrued most of his wealth from the normal commodity trades with Europe mentioned above, which he had conducted successfully for several years before his involvement with the Royal African Company. Colston had inherited a modest legacy from his father, but this was insufficient to account for his own wealth. It is likely that he made profits out of careful financial dealings and accumulating savings, and he certainly gained income through money lending. […] It is likely that he made shrewd investments to augment his capital, but he has left no personal papers and so it is impossible to estimate, even roughly, what proportion of his wealth was gained from different business and financial ventures."
Hayton, David, Colston, Edward II. The History of Parliament. Cambridge University Press (April 2006). Gearchiveerd op 1 december 2017. Geraadpleegd op 11 december 2017.
Hayton, David, Colston, Edward II. The History of Parliament. Cambridge University Press (April 2006). Gearchiveerd op 1 december 2017. Geraadpleegd op 11 december 2017.
