His birth transcription:

First name(s) Samuel
Last name Latham
Birth year 1752
Birth date 28 Oct 1752
Baptism year 1752
Baptism date 30 Oct 1752
Place Dover
Denomination Presbyterian
Father's first name(s) Jno
Mother's first name(s) Sarah
County Kent
Country England
Archive reference TNA/RG/4/1376
Description KENT: Dover (Presbyterian): Births & Baptisms
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In his will he refers to his dwelling house, possibly in Margate Street, his banking house and his wharf and wharehouses - a man of substance, it seems.

He was one of two executors to his father, the other being John Barber, a son-in-law of his father.
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Lorraine Sencicle says he built a mansion in Snargate over Sluice, otherwise Union Street.  In 1789 he founded the bank of Latham, Rice & Co Union Bank, more commonly Lathams Bank.
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From the London Courier and Evening gazette of 13 October 1834:

“On the 11th instant, at Dover, Samuel Latham, Esq., of the firm Latham and Co., bankers, and Lieutenant Governor of Dover Castle, in the 82d year of his age, highly respected.”
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In his will dated 11th March 1834 and proved 17th March 1835, he lists:
His son Benshaw (?) Latham (executor),
His son Samuel Metcalfe Latham (executor),
His son John Henry Latham,
His daughter Sarah Louisa Latham,
His daughter Eliza Latham,
His daughter Harriet m. to Robt Thomson
Lt-colonel Robert Thompson of the Royal Engineers,
His daughter Anne Eyre, widow,
His daughter Catherine m. Rev John Tabby of Nosthill, Beds,
His daughter Charlotte m. Edward Brilloss (?) of the Royal Engineers.

(There is no mention of his burial place or of his wife, presumed deceased.)

NA

TFPL, July 2016: Originally I had entered, around 2008, that Samuel Latham had married Anna (speculated to be a corruption of Susanna) Stringer, daughter of Phineas Stringer and Affre Rouse.  I think someone had given me this information or that I had picked up that Phineas Rouse was the grandfather of one of Samuel Latham’s grandchildren.

The last is factual, found in 2016, as can be seen from Phineas Stringer’s will in which he very firmly asserts that Harriet Stringer Broderip was the daughter of his daughter Afra the wife of Edward Broderip.  Elswhere I had previously found evidence that Edward Broderip, then with an unknown wife, had a daughter Harriet Stringer Broderip who had married John Henry the second son of Samuel Latham.  This appeared to make Harriet Stringer Broderip and John Henry Latham first cousins, but that merely echoes the habit of marrying first cousins in the Latham-Taddy axis.

However with the increased number of parish registers entries available mainly through Family Search, whom both Ancestry and FindMypast borrow from indiscriminately, it has now become more likely that a very large proportion of parish register transcriptions can be found.  And every search I have done for a marriage between Samuel latham and a Susanna Stringer has drawn a blank.  The final blank to be drawn was the burial of Susanna Stringer in Dover a mere eighteen months after her birth.  Reluctantly, as it was a ghastly mistake on my part, I have decided that Susanna as wife of Samuel Latham is no longer tenable, particularly in view of the next discovery which obviates the need to construct the change of name from Susanna to Ann or Anne or Anna.

This is the only marriage found from anywhere near the right time (the birth of their first-born in 1782):

First name(s) Samuel
Last name Latham
Marriage year 1782
Marriage date ? ? 1782
Marriage place Southwark St George the Martyr
Spouse's first name(s) Ann
Spouse's last name Henshaw
Source Parish Register Transcripts
County Surrey
Country England
Record set Surrey Marriages

The problem with this marriage is in the bride’s surname which is the same as the maiden name of Samuel’s mother.  Presumably Sarah Henshaw, his mother, and Ann were related but I cannot even get onto the first step with any information on Anne’s parents.  This marriage is only to be found on FindMyPast, not on Family Search.  Perhaps the first step is to get hold of a photocopy of the marriage register.

The only baptism of an Ann Henshaw within a few years for narriage in Surrey and childbearing from 1782 to 1801 is:

(a) from Family Search:

(i)
Name Ann Hanshaw
Gender Female
Christening Date 24 Jun 1753
Christening Place GODALMING,SURREY,ENGLAND
Father's Name John Hanshaw
Mother's Name Ann

Indexing Project (Batch) Number C01333-3
System Origin England-ODM
GS Film number 814231

(ii)
Name Ann Henshaw
Gender Female
Christening Date 20 Jun 1753
Christening Place ST BOTOLPH WITHOUT ALDGATE,LONDON,LONDON,ENGLAND
Father's Name Wm. Henshaw
Mother's Name Elizth.

Indexing Project (Batch) Number C00633-7
System Origin England-ODM
GS Film number 370931, 370932


(b) FindMyPast:

Merely the above plus loads from Cheshire and the Midlands.

Neither of these baptism corresponds with the age given at her death.
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The copy of the marriage register was found on Ancestry and included:

1. Samuel is "of the Parish of St James in the Town of Dover in the County of Kent a Batchelor" (Bingo!)

2. Ann Henshaw is "of this Parish of St George Southwark a Spinster & a minor"

3. The marriage was at St George Southwark on 19 Jan 1782, register No 184.

4. The marriage was with the "consent of Edward Henshaw the lawful ... of the said minor"
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