The IGI lists Henry Howkins christened Aug 25, 1836, Saint Mary Warwick, father Theophilus Howkins, mother Marian.

Parish Records St Mary, Warwick, Warwickshire
Baptism August 25, 1836, Henry Howkins son of Theophilus and Marian Howkins of Market Square, father’s “quality” is Esquire.

In the 1841 census they are listed as
Theophilus Howkins age 35, living on his own means,
Marianne Howkins age 30,
Henry Howkins age 4,
Marianne S. Howkins age 3, ?
Elizabeth Howkins age 1
Living in North Lane, Harbury, Warwick.
Also in the household were Anne Gibson age 60 Marian’s mother living on her own means
and 4 servants.
(in the 1841 census ages were rounded to 5 years for adults). They were living on North Lane, Harbury, civil parish, Knightlow (Kenilworth Division) hundred, Warwickshire, England. The registration district was Southam. There are 2 other Howkins families in Harbury. They are John Howkins and William Howkins both Agricultural labourers, age about 25 and their families.

In the 1851 census there is a
Henry Howkins age 14, born in Warwick living at the Rectory, Wareham, Salisbury, Dorset. His relation to the head is pupil.
The head is Samuel R. Capel, rector of Wareham, age 49, born at Stroud Gloster. Samuel’s family, other pupils and others are also listed. This is a possible match.

London Gazette 15 January 1856
Henry Howkins, Gent., to be Ensign. Dated 4th January, 1856.

London Gazette 20 January 1857
Ensign, Henry Howkins to be. Lieutenant, vice Lieutenant Armfield, resigned. Dated 12th January, 1857
March 8, 1859 London Gazette
Commissions signed by the Lord Lieutenant of the County of Warwick.
Warwickshire Militia.
2nd Regiment. [Headquarters Leamington]
Lieutenant Henry Howkins to be Captain, vice Plevins, resigned. Dated 14th February, 1859

In the July to September 1860 marriage index Henry Howkins on the same page as Amelia Hooper, Bristol, volume 6a, page 47.

Select Bristol Parish Registers St. Mary Redcliffe, Bristol, Gloucestershire
Marriage date August 4, 1860 Henry Howkins, single, father Theophilus Howkins and Amelia Hooper, single, father William Hooper

Parish Records St. Mary, Redcliff, Bristol
Marriage August 4, 1860 Henry Howkins, age 24, bachelor, captain, residence The Ship Inn, father Theophilus Howkins, gentleman and
Amelia Hooper, age 24, spinster, residence The Ship Inn, father William Hooper, gentleman
by licence by me George Madan, Vicar
In the presence of Jesse Vickery and Ann Vickery
Signed Henry Howkins, Amelia Hooper
[The Ship Inn is directly across the street from St. Mary.]

In the 1861 census Sudbury St., Harrow, Middlesex, Hendon district.
Head Henry Howkins, age 25, Captain in Militia, born Warwick, Warwickshire.
Wife Amelia Howkins, age 24, born St Heliers, Jersey.
Mary Ann E? Hooper, wife’s step sister, age 17, born Plymouth, Devon.
A Lodger John Carew, age 39, born Ireland.

In the 1871 census 25 Elderford Road, Hackney, London
Head Henry Howkins, age 36, gentleman, born Warwickshire.
Wife Amelia Howkins, age 36, born Jersey.
1 servant.

Freedom of the City of London Papers
A Common Council holden in the Chamber of the Guildhall of the City of London, on Thursday the 1st day of May 1873
This Court doth hereby assent to the Admission of Henry Howkins of No. 25 Elderfield Road, Clapton Park, no business or profession to the Freedom of this City by Redemption …
Next page
25th day of April 1873
Henry Howkins (Son of Theophilus Howkins of Newton Abbott, Devon, Gent. occupying premises 25 Elderfield Road, Clapton Park of no business or profession to hereby apply to be admitted to the Freedom of the City of London … and I hereby declare that I am not an Alien, and that I am above the age of 21 years.
Signed Henry Howkins.

Listed in the 1 July 1873 London Gazette
2nd Warwick
Captain Henry Howkins is granted the honorary rank of Major. Dated 2nd July, 1873.
2nd Warwick.

Also June 12, 1874
Captain and Honorary Major Henry Howkins resigns his Commission, also is permitted to retain his rank, and to continue to wear the uniform of the Regiment on his retirement. Dated 13th June, 1874.

In the Auxiliary forces list: Staffordshire, Warwickshire, Worcestershire by Henry Bathurst, 1876
Officers who have retired, with permission to retain their rank, and to wear the uniform of the Battalion.
Major - Henry Hawkins [note the spelling]
[He became an Ensign on 4 January 1856] Lieut., 12 Jan ‘57; Captain, 14 Feb ‘59; major, 2 July, ‘73: retired June, ‘74. Served during the embodiment of the Regiment at the time of the Crimean War and the Indian Mutiny.
It also says the 53rd or 2nd Warwickshire Infantry Militia was raised in 1853, being formed from the 1st Warwickshire Militia. Embodied during the Crimean War [October 1853 to February 1856] and Indian Mutiny[ May 10, 1857 to June 20, 1858]. Embodied Service [of the Battalion], 4 years 2 months
Head Quarters, Leamington Brigade Depot, No. 28, part of the 2nd Brigade (Limerick); 3rd Division (Cork); of the 4th Army Corps (Dublin).

In the 1881 census there is a
Henry Howkins, lodger, age 44, born at Warwick, occupation Major Militia Retired. He is married.
His wife is Amelia Howkins age 43 born at Jersey.
They are living at 4 Sutton Place, St John Hackney, London, England.

In the October to December 1882 death index Henry Howkins, age 47, Plympton St. Mary district, Devon, volume 5b, page 154.

London Gazette February 16, 1883 Henry Howkins late of Park House Farm, Brixton Devon, formerly of No. 4 Sutton-place, Hackney, Middlesex, gentleman, deceased (Who died on the 5th day of November last etc. Executors Amelia Howkins, Richard Stevens and Henry Stevens.

National Probate Calendar
February 6 1883. The Will of Henry Howkins formerly of 4 Sutton-place Hackney in the County of Middlesex but late of Park House Farm Brixton in the County of Devon Gentleman who died 5 November 1882 at Park House Farm was proved at the Principal Registry by Amelia Howkins of Park House Farm Widow the Relict Richard Stevens of 315 Rotherhithe-street Bermondsey in the County of Surrey Gentleman and Henry Stevens of 10 Balfour-road Highbury New Park Islington in the County of Middlesex Gentleman the Executors. Personal Estate 2000 pounds 9 shillings 6 pence

Presumably this is her baptismal record
Jersey Births and Baptisms - St. Helier
Baptism August 31 1834
Emelia Hooper daughter of William and Mary Hooper ceremony by C. Hue , Rector
John Warren Godfather, The said mother godmother.
[Interestingly earlier entries on the same day are in French while Emelie’s entry and those after her on the same day are in English. And also several of the godmother’s stated in the record were the said mother.]