The AJAX, 767 tons, only made one voyage to Nelson, Marlborough, New Zealand.
She sailed on September 8th 1848 from London, with Captain John Young and from Downs on the 11th September.
She arrived January 8th 1849 in Port Chalmers with 195 passengers for Wellington and Nelson.
The ship, after discharging and landing a portion of her passengers, sailed for Wellington and Nelson, arriving at the latter port on March 9th.

21 steerage passengers were listed in the quota for Nelson in the Embarkation Register, but the immigration agent at Nelson listed only 12 as disembarking there.

The Ajax was wrecked on her voyage back to London from Manilla at Anjer on the western tip of the island of Java in Sunda Straits on March 12th, 1850.

Into Nelson:
Samuel COOK aged 30 and his wife Grace aged 25

James Gilbert GORE, a plumber aged 36 with his wife Harriet aged 27 and 2 children, Alfred aged 2 months and Catherine aged 2 years

Joseph HARTMANN, a carpenter, farmer aged 28 with his wife Eliza aged 26 and 2 children Charles and Louise (who was aged 8 months - named in the Nelson quota but was not listed in the disembarkation register for Nelson)

Richard K. NEWCOME, a 'gentleman' aged 30

Henry PICARD aged 25

John PLANK, a carpenter aged 19

Joshua RIX, a carpenter aged 27 with his 27 year old wife Martha and 2 children Henry John and Elizabeth

George STOWERS, a 32 year old labourer with his 32 year old wife Sarah and 2 children Thomas and William and an infant born on board

Eliza TAYLOR, a 14 year old servant

Mary WALKER aged 35

Frederick WITHERBY aged 23

Samuel Woolley a 29 years old 'domestic servant with his 30 year old wife Maria and 5 children, Samuel, Clarissa, Eliza, Maria and Jane = they also travelled with their 2 month old, Sarah Lucy, but she was not listed in the disembarkation register for Nelson.