The first 'Kingswell' in Malta was James Kingswell a civil engineer born in Deptford, Kent about 1782 and died in Westminster, London in 1847
He married Lydia Payne 1779-1835 in Westminster on the 15 September 1805.
The couple after their first six children were born went to Malta about 1820 James taking up the position of Block Maker at the Naval Arsenal. They then had two more children born in Malta.

Here is some info on the children of James and Lydia Kingswell:
Lydia Ann Kingswell b:1807 Deptford, Kent d: 1898 Lancashire, England m. Thomas RAMPLEY
Maria KINGSWELL b: 1809 Kent d: 1880 m. James MURRAY
Mary Anne KINGSWELL b: 1811 England m. Edward BEER
Sarah KINGSWELL b: 1813 Deptford d:1904 Wooloowin, Brisbane Queensland m. Samuel RANSLEY 1796 1843 of the Royal Navy. Their daughter Lydia Ransley married into the Australian OXENHAM family
James Kingswell b: 1816 Deptford. d: 1827 Malta
John KINGSWELL b: 1820 Deptford d: 1882 ?
William Kingswell b: 1823 Malta d: 1825 Malta
George Kingswell b:1825 Malta. d: 1902 a wardroom Steward with the Royal Navy m. Concetta Micaleff 1851 Malta
Edward Frederick KINGSWELL 1827 ?

Sources:
From Malta Family History
Edward Frederick KINGSWELL, born 28th January 1827, the son of James and Lydia Kingswell, Block Maker in Naval Arsenal

George KINGSWELL, born 29th May 1825, the son of Lydia and James Kingswell, Block Maker in Naval Arsenal

James KINGSWELL, born 9th July 1816, the son of Lydia and James Kingswell, Block Maker in Naval Arsenal

James KINGSWELL, buried 10th October 1827, aged 11 years

John KINGSWELL, born 31st December 1820, the son of Lydia and James Kingswell, Block Maker in Naval Arsenal

John KINGSWELL, living at 8 Strada del Carmine, Cospicua, electoral list 1852

Lydia Ann KINGSWELL, 21+, spinster, of St.Nicholas Parish, Deptford, Kent, married 20th April 1830, to Thomas RAMPLEY, 21+, bachelor, of St.Lawrence Parish, Norwich

Maria KINGSWELL, born 16th September 1809, the daughter of Lydia and James Kingswell, Block Maker in Naval Arsenal

Maria KINGSWELL, of Kent, married 4th June 1826, to James MURRAY, 95th Regiment

Mary Anne KINGSWELL, born 5th August 1811, the daughter of Lydia and James Kingswell, Block Maker in Naval Arsenal

Mary Ann KINGSWELL, married 27th October 1829, to Edward BEER, Corporal, 95th Regiment

Sarah KINGSWELL, born 3rd October 1813, the daughter of Lydia and James Kingswell, Block Maker in Naval Arsenal

Sarah KINGSWELL, of Kent, married 29th June 1829, to Samuel RANSLEY, Colour-Sergeant, Rifle Brigade

William KINGSWELL, born 23rd February 1823, the son of Lydia and James Kingswell, of the Naval Arsenal

William KINGSWELL, buried 25th June 1825, aged 3 years, son of James and Lydia Kingswell

London, England, Marriages and Banns, 1754-1921
about Lydia Payne
Name: Lydia Payne
Spouse Name: James Kingswell
Record Type: Marriage
Event Date: 15 Sep 1805
Parish: Paddington St James
Borough: Westminster
Register Type: Parish Register


1861 England Census
about George Kingswell
Name: George Kingswell
Age: 37
Estimated Birth Year: abt 1824
Relation: Ward Room Steward (Ward)
Gender: Male
Where born: Malta
Civil parish: Vessels
Town: Malta
County/Island: Royal Navy
Country: England
Street Address:
Occupation: Ward Room Steward
Registration district: Royal Navy
Sub-registration district: Royal Navy
ED, institution, or vessel: Hiberhin
Neighbors: View others on page
Household schedule number: 1
Piece: 4440
Folio: 178
Page Number: 2

Malta as a Naval Base

Image below, navy hospital in the background fort ricasoli vittoriosa and dockyard
courtesy of www.carto.net