The papers were presented in 1956 by Admiral Sir Sydney Fremantle. They consist of logs, 1828 to 1829, 1839 to 1841; letter and order books, 1839 to 1842, 1852 to 1857, and a private record of letters sent and received, 1847 to 1848. There is also a privately-printed statement in answer to the charges made against him as captain of the JUNO.

Administrative / biographical background
Fremantle was the youngest son of Vice-Admiral Sir Thomas Fremantle (q.v.). He entered the Royal Naval Academy, Portsmouth, in 1823 and afterwards served as midshipman in the Challenger, 1828, and the Pallas, 1828 to 1829, on the Home Station. He was promoted to lieutenant in 1829 and to commander in 1836, when he commanded the Clio, Southampton and Wanderer at the Cape of Good Hope and on the South American Station and in China respectively. He was promoted to captain in 1842 while in the Wanderer. After service in North America, he was appointed to the Arrogant, 1852 to 1853, on the Home Station and then the Juno on the Australian Station, 1853 to 1857. He was accused of over-strict discipline in the Juno and had no further employment.