Katherine Stewart Forbes was a barque built at Northfleet docks in Kent in 1818 to 'second description first class' for the Chapman company. She weighed 457 tons and was variously recorded as a ship and a barque. She is recorded to have conveyed early settlers to New Zealand, and convicts to Australia in 1830 and 1832. Her masters were Captain Alfred Fell and Captain James Berry, Chief officer was William Donovan, W B Willoughby was Second Officer and Duncan Donovan was Third officer.