Small envelope accompanying letter from Captain Crozier to midshipman John Henderson (see AGC/C/5/1). On the front is Henderson's address in Pimlico and the reverse is stamped 'Ship Letter 9 August 1845'. Also on the reverse is a very small red seal depicting a three masted ship.

Administrative / biographical background
John Henderson had been a midshipman at the same time as Francis R M Crozier and James Clark Ross on the first voyage of the FURY into the Arctic in 1821 under William Edward Parry. The three midshipmen were promoted to lieutenant with seniority dated 26 December 1822. Henderson did not progress any further in his career in the Navy and was still listed as a lieutenant in 1845. The Arctic Navy List (compiled by Clements Markham) states he was part of the company of the Royal Arctic Theatre and had Cape Henderson named after him on Somerset Island.