Thomas Forrest

Thomas Forrest (c. 1729–c. 1804) was a versatile mariner in the Marine of the East India Company who served in Southeast Asian waters for over thirty years during the mid-eighteenth century. His career encompassed command of Company vessels, private trading, diplomatic missions, and strategic surveys of the Strait of Malacca, the Mergui Archipelago, and the waters east of Java and Borneo. Although his own publications brought him some contemporary fame, his strategic contributions to British policy—particularly his advocacy for Penang and the Mergui Archipelago as bases for the Company—have been historically overshadowed by the better-known efforts of Francis Light.[1, pp. 106]

Early Career and the Bencoolen Establishment

Forrest arrived in India in 1751 after service as a midshipman in the Royal Navy from 1745.[1, p. 106] His early years in the region were marked by misfortune and enterprise in equal measure. In August 1757, as master of the Company sloop Neptune, he suffered a capsizing that killed seventeen of his crew, the accident attributed to “the great disproportion of her Mast to a Vessell of so small a Burthen”.[1, p. 107] He subsequently commanded the private sloop Fanny, visiting Batavia in 1759 to purchase arrack and wine for the British fleet at Madras, where his vessel was boarded by a Dutch armed party that caused considerable damage.[1, p. 107]

By 1760 Forrest had turned to private trading as a “Free Merchant”, arriving at Fort Marlborough, Bencoolen, only to find the garrison capitulate to a French invasion force under D’Estaing on 3 April of that year.[1, p. 107] He recouped his losses by selling opium to Buginese traders from Celebes and, by 1761, owned the ketch Bonetta, with which he made further profits in north Sumatra.[1, p. 108] The Bonetta was wrecked in 1762, and Forrest was escorted across Saleyer to Macassar in Celebes by the Dutch resident, where he observed the strength of Fort Rotterdam from the deck of a Dutch ship.[1, p. 108]

The Tartar Galley Voyage and Strategic Surveys

Forrest’s most celebrated achievement was his voyage in the ten-ton Tartar Galley from Balambangan in November 1774 to locate areas of spice production outside Dutch control. The expedition took him to Sulu, Bachian, the northern coast of New Guinea, and the southern coast of Mindanao, giving him a knowledge of those lands that was probably unrivalled at the time.[1, p. 110] He returned in January 1776 to find the Balambangan settlement destroyed by Suluk pirates. The Tartar Galley was subsequently sold at public auction by the orientalist William Marsden for £9.7.6.[1, p. 111]

The voyage’s publication in 1779 brought Forrest international recognition, yet his financial relationship with the Company remained strained. He received an advance of £800 in May 1777 because he was “in distress for money”, and a recommended gratuity of £500 was not finally approved until February 1780.[1, pp. 111–112]

During the Anglo-French war, Forrest’s intelligence work proved decisive. In December 1782, while searching for Suffren’s fleet in Kedah, he learned that the French admiral was still at Acheh and raced for Vizagapatam, arriving on 20 December—the same day Suffren put to sea—thereby saving a number of ships from capture.[1, p. 115]

Advocacy for British Bases in the Strait of Malacca

Forrest’s most significant strategic contribution lay in his proposals for British footholds in Southeast Asia. In his “Remarks on the Islands off the Coast of Mergui” presented to Warren Hastings in June 1784, he advocated the development of St. Matthew’s Island as a settlement remote from mainland politics, with strong currents enabling ships to round Acheh head for Europe.[1, pp. 115–116] He also wrote to Raja Haji of Johore, who responded with “friendly and liberal proposals” to cede part of his territory for a Company factory, but Raja Haji was killed at Telok Ketapang in June 1784 before the mission could proceed.[1, pp. 116–117]

From Kedah in September 1784, Forrest sent Hastings a comprehensive proposal recommending the occupation of Cheduba, Penang, and St. Matthew’s Island, warning that “our deferring it may ruin our Posterity”.[1, p. 118] His description and sketch maps of Penang and its hinterland must have made a considerable impression on Hastings, though Forrest lacked the political knowledge of Kedah and personal influence with the sultan that enabled Light to obtain the cession in 1786.[1, p. 119]

Research and Documentation

D. K. Bassett’s 1961 article in the Journal of the Malayan Branch of the Royal Asiatic Society remains the definitive study of Forrest’s career, drawing extensively on India Office Library collections in London—Court Minutes, Sumatra Factory Records, Bengal Secret Consultations, and Marine Records—alongside Additional Manuscripts in the British Museum.[1, pp. 106] Bassett’s work corrected the assumption of Sir John Laughton, writing in the Dictionary of National Biography, that Forrest’s own publications were the only source of significance available to his biographer.[1, p. 106] The article’s historiographical contribution lies in repositioning Forrest within the narrative of British strategic planning in the Strait of Malacca, demonstrating that the Penang acquisition was not solely Light’s achievement but the culmination of a process in which Forrest played a formative role.[1, p. 115]

MBRAS Sources

• D.K. Bassett (1961). Thomas Forrest, an eighteenth century mariner. JMBRAS 34(2): 106–122

References

1. D.K. Bassett (1961). Thomas Forrest, an eighteenth century mariner JMBRAS 34(2): 106–122. Read on JSTOR