Asa Clapp, who at his death in 1848, at the age of 85 years, was credited with being the richest man in Maine,[43] began his career during the Revolution as an officer on a privateer. After the war he commanded various trading vessels, and in 1796 established a shipping business of his own, with headquarters at Portland. His vessels traded with Europe, the East and West Indies and South America. In his later years he went into banking. Of the size of his fortune we are left in ignorance.

These are instances of rich men whose original capital came from privateering, which was recognized as a legitimate method of reprisal. As to the inception of the fortunes of other prominent capitalists of the period, few details are extant in the cases of most of them. Of the antecedents and life of Thomas Russell, a Boston shipper, who died in 1796, "supposedly leaving the largest amount of property which up to that time had been accumulated in New England," little is known. The extent of his fortune cannot be learned. Russell was one of the first, after the Revolution, to engage in trade with Russia, and drove many a hard bargain. He built a stately mansion in Charleston and daily traveled to Boston in a coach drawn by four black horses. In business he was inflexible; trade considerations aside he was an alms-giver. Of Cyrus Butler, another shipowner and trader, who, according to one authority, was probably the richest man in New England[44]--and who, according to the statement of another publication[45]--left a fortune estimated at from three to four millions of dollars, few details likewise are known. He was the son of Samuel Butler, a shoemaker who removed from Edgartown, Mass., to Providence about 1750 and became a merchant and shipowner. Cyrus followed in his steps. When this millionaire died at the age of 82 in 1849, the size of his fortune excited wonderment throughout New England. It may be here noted as a fact worthy of comment that of the group of hale rich shipowners there were few who did not live to be octogenarians.

History of the Great American Fortunes, Vol. I — Part 34

The rapidity with which large fortunes were made was not a riddle. Labor was cheap and unorganized, and the profits of trade were enormous. According to Weeden the customary profits at the close of the eighteenth century on muslins and calicoes were one hundred per cent. Cargoes of coffee sometimes yielded three or four times that amount. Weeden instances one shipment of plain glass tumblers costing less than $1,000 which sold for $12,000 in the Isle of France.[46]

History of the Great American Fortunes, Vol. I — Part 34