I looked up the will of Admiral James Steuart (Prerogative Court of Canterbury):
"Admiral James Steuart of the parish of Saint George Hanover Square"
Friend Admiral Robert Long of Hollis Street (executor)
Friend Henry Rouse/Howe in parish of St George Bloomsbury [?] (executor)
Friend Captain Robert Greenway of Hatton Garden (executor)
My wife Mary Steuart daughter of Mr John Taylor of Portsmouth and mother of my...
Son James Steuart (minor)
"my large single stone diamond ring which was my uncle the late Genl William Steuart's"
Wife to have power to dispose chattels to any other children they may have.
Nephew William, only son of my brother Colonel John Steuart of Stafford Street, Dublin (both living).
Other nephews and nieces, lawful issue of my brothers or sisters.
"My friend of long acquaintance" Mary Greenway, spinster, sister of Captain Robert Greenway
My late housekeeper Margaret Lock who is now my agent in the parish of St Giles.
Catherine Richards spinster, who waits on my wife.
Son James who is now at Marybone Boarding School for young gentlemen to be educated as a barrister at law.
[He was very anxious that his son not be given so much money that he drink too much and neglect his studies.]
Dated 1st Dec 1752
Witnesses: James Burnett, George Tyler, Thos Sturgis.
Codicil
If son James dies, and no other issue, then wife to have power to dispose of £1000 as she thinks fit.
Provisions for other children should he or Mary have any.
In default of such issue to nephew William Steuart, son of Colonel John.
Gives his 3 pews to the former house of his uncle Gen. Wm Steuart (corner house opposite Duke of Roxburgh's)
Servant Samuel Lee senr.
[Describes wife as "most sincere prudent and virtuous good women" and himself a "tender and most affectionate husband", and declares that he and his wife were indeed married by a clergyman of the Church of England.]
Dated 7th Sep 1753.
Witnesses: James Burnett, George Tyler, Thos Sturgis.
Proved 2nd Apr 1757 by the oaths of Robert Long, Henry Rowe/Rouse [?] and Robert Greenway.
It’s a very long will with plenty of legal guff and repetition, but there’s a lot of interesting detail which gives a good picture of their lives and feelings.