Alden was an officer in the sloop-of-war 'Vincennes', the flagship of the United States Exploring Expedition which spent four years in the Pacific under the command of Commodore Charles Wilkes.

The journal gives an account - but not a day-by-day account - of the Vincennes voyage which took in the Tuamotu Archipelago, Tahiti, Samoa, Fiji, Australia, New Zealand, the Antarctic, Hawaii, the Gilbert (Kiribati), Ellice (Tuvalu) and Marshall Islands. See also PMB MS 124-146 and the Bureau's newsletter, Pambu, Dec. 1971:25, pp. 4-7.

Henderson and Macfarlane Ltd., one of Aotearoa/New Zealand's best-known firms, was founded in Wellington (then called Port Nicholson) in 1840 by two Scottish immigrants, Thomas Henderson and John Macfarlane. The company exported timber, mainly kauri, and established its own shipping line. In the 1870's, the company became interested in the Pacific Islands trade and established a number of trading stations and coconut plantations. These were sold to Burns Philp, Lever Bros., and the Pacific Islands Company in the first years of the 20th century.

The unpublished history consists of 33 typewritten foolscap pages. It describes the establishment of the company, its Circular Saw Shipping Line and Pacific Island trade interests and mentions some well-known Pacific personalities such as Handley Bathurst Sterndale and 'Bully' Hayes; the 'siege' of the Suwarrow fort built by Sterndale and which he refused to leave after a difference of opinion with the company; Henry Mair's attempts to persuade Sterndale to leave and their subsequent 'smoking out' by Captain Fernandez of the schooner Kreimhilda who was sent to bring Sterndale back. Also mentioned is the 1890 Pacific cruise of Robert Louis Stevenson and his wife on the company iron-screw cargo boat Janet Nichol described in Mrs Stevenson's book published in 1915. The history takes the story of Henderson and Macfarlane down to the year 1902, by which time J.L. Young had entered the firm as a partner and the day of free and unrestricted trading in the Islands was ending.
See also the Bureau's newsletter Pambu Oct. 1969:15 pp. 6-10.

Captain Edward Primrose Tregurtha (1803-1880) was born in Cornwall, UK, and died in Launceston, Tasmania. He went to sea at an early age, and made voyages to the Far East and India. In 1831-33, as master of the whaler Caroline, he made an extensive whaling voyage out of Hobart. His itinerary included Sydney, the Bay of Islands, the Kermadecs, Rotuma, Wallis Island, the Gilberts, Solomon Islands, New Ireland, and the Coral Sea. After a visit to England, Tregurtha returned to Tasmania, whence he traded with neighbouring colonies as owner and master of the Henry. He made voyages to Adelaide in 1837 and took early settlers and sheep to Port Phillip. He later opened a business in Launceston as a general merchant and shipping agent.

The autobiography, which, in many places, appears to have been written up from journals kept at sea, gives a full account of Tregurtha's life from his birth in 1803 until the late 1830's. From then until the year 1852, it is brief and sporadic.