Jacobs was descended from many of the principal families on the Isle of Wight, including the Oglanders, Worsleys, Urrys, Dingleys and Leighs.
In 1850 he sailed to New Zealand on Sir George Seymour to be classical professor of a proposed new college in Canterbury.
[1] On arrival he conducted the first Church of England service in the Canterbury region and in July 1851, conducted the service at the opening of the first church in Christchurch.
Dean Jacobs opened Christ's College Grammar School on 21 April 1862, as its first headmaster, and became Sub-Warden in the Deed of Foundation of the College on 21 May 1855, and shortly afterwards Watts-Russell Professor.
After returning from a visit to England in 1891, he suffered a paralysis, died in 1901 and was buried in Barbadoes Street Cemetery in Christchurch.