Louisa Kettle was born in 1815 in Sandwich, Kent, England.
She was the daughter of Nathaniel and Elizabeth Kettle, and sister of Charles Henry.
Louisa was named in the will of Edward Betts Hopper, who was one of the Directors of the New Zealand Company. The will was written in 1839:
Edward Betts Hopper of Dover, Kent, Gentleman, late of Sittingbourne.
Another sum of £1,700 to be invested and dividends to be paid to Louisa daughter of highly esteemed friend Nathaniel Kettle of Elham, Kent, Gentleman, for term of life, after her decease to be divided equally between nephew Edward Catchpool and Harriet as with previous investment - those investments of minors to be used toward education and maintenance.
Bequest to Louisa Kettle £100 payable within 3 months, and such furniture and pictures as belong to testator and are in his present lodgings at Dover, and as many books as she may select to furnish the bookcase, and such drawings and prints as she may choose, and his small portable desk with contents, including smallest watch & appendages, and best ring, and six silver tea spoons and 2 silver table spoons, and four time musical box, and his miniature in frame.
Edward Betts Hopper travelled to New Zealand on the Oriental, arriving January 31, 1840. He drowned in the Hutt River in September 1840.
Louisa is recorded as living with her parents in Hougham, Kent, 1841, and St Peter Sandwich, Kent, in 1851.
She married Thomas Longland on 7 May 1852 at St Andrew's, Holborn, Middlesex. Thomas was a widower, and had seven children. In 1861 he was a "Farmer 1000 Acres Employing 42 Men And 9 Boys", residing in Warboys, Huntingdonshire. The 1861 census records Thomas, 53, Louisa, 43, Thomas's daughter Agnes M Longland, 15, and a visitor Louisa Kettle, 22.
This Louisa Kettle, born 1839, was Louisa Longland's niece, daughter of Thomas and Sarah Kettle. She later married Thomas Longland's son John.
Louisa died on 22 November 1862 in Warboys.
After Louisa's death her niece Elizabeth Kettle was the housekeeper at the Longland residence for many years. Thomas Longland died in 1865.