Update for completeness.
National Archives have found the Will of William Morgan of St Thomas, Southwark. 1749
In the Name of God Amen, I William Morgan of the
Parish of St Thomas Southwark in the county of Surry Gentleman
being weak in Body but of sound mind memory and understanding
do make this my last will and Testament in manner and form
following that is to say Whereas my Brother the Rev John Morgan
of Sion College London stands indebted unto me in the summe of
twenty one pounds besides interest being the remaining part of the
summe of forty five pounds I lent him sometime since on his
Note of Hand for the same as may appear by the said Note
now in my Wifes Custody who refuses to deliver the same to
me Now I do hereby in Consideration of my said Brothers having
maintained and educated my son David Morgan from his
Infancy (he being upwards of fifteen years of age) forgive and
discharge my said Brother John Morgan of and from the said
summe of twenty one pounds and all Interest due thereon to me
at the time of my decease and all thereof residue and remainder
of my Estate of what nature or kind soever I give and bequeath
the same and every part thereof unto my said Brother John
Morgan in trust for my said son David Morgan when he shall
attain the age of one and twenty years At which time I direct
my Executor hereafter named to deliver and pay all such residue
of my said Estate unto him my said son David Morgan for his
own sole use and benefit but incase my said son shall depart this
life before he attains such age then and in such case I give and
bequeath all such residue of my said Estate unto Leonora Morgan
wife of the said John Morgan as a recompense for her extraordinary
love and indulgence of my said son from his Infancy as aforesaid
and i do hereby nominate constitute and appoint my said Brother
John Morgan sole executor of this my last Will and Testament
hereby revoking all others by me at any time heretofore made In
witness whereof I have here unto set my hand and seal this
fourth day of December in the year of our Lord 1749
Signed sealed published and declared by the
Testator William Morgan as and for his last
Will and Testament in the presence of us who
in his presence and at his request have sett
our names as witnesses hereto
Tho. Raffles Pet. Edwards
On the reverse it says
14th November 1750
The Revd. John Morgan the
Brother of the Testator and sole
Executor within named
was duly sworn
and
Testator died in the parish of St Mary Newington in the county of Surrey in July last.
Which I interpret as July 1750, and so the burial on 13th July 1750 at St Mary Newington which unfortunately only gives his name.