Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,487 pages of information and 233,925 images on early companies, their products and the people who designed and built them.
James Smallman (1763?-1821) was born in Staffordshire, emigrated to the USA, and died there in 1821.
1793-4 James Smallman was sent to the Netherlands by Boulton and Watt to erect a pumping engine to reclaim the Mijdrecht Lake (Mijdrechtse Poel). It seems that he was then lured to the USA with other B&W or ex-B&W men.
After helping to erect the first Boulton and Watt engine in America, he and several other B&W-trained engineers were hired by Nicholas J. Roosevelt (1767-1854) when he established a foundry, machine shop, and smelting works at Belleville, which he named Soho Works, after those of Boulton & Watt in Birmingham, England. The others were Charles Stoudinger, John Hewitt (1777-1857), and the Rhodes family - Frederick, George, and Lewis Rhodes)..
In 1802 Smallman was listed as a steam engine maker in Philadelphia. In 1806 he built a 6 HP engine for a flour mill in Cadiz, Spain, apprently the first steam engine to be exported from the USA.