Born: 4 June 1759 and died at Bangor Rectory 26 February 1845 aged 87.
Daughter of: George Gostling 1714-1782 of Whitton Park in the County of Middlesex, Esq.  George was a lawyer and was Proctor to the Admiralty.  Lucy's mother's name was Ann Gostling.
Sister of: 
1. George Gostling 1744-1820 of Whitton Park in the County of Middlesex.  George was also Proctor to the Admiralty.
2. Possibly others.
Married: John Marsh (1747-1823) son of  Milbourne Marsh.1709?-1778.
Lucy and John had issue:
1. John Milbourne Marsh (1787-1826).
2. George Augustus Eliott Marsh MA (1790-1867) who married Julia Murdock (1792?-1854).
3. Lady Eliza Downman (1799-18??) who married Sir Thomas Downman.

We know about Lucy from the following sources:
1. "History of the Ancient Family of Marsh" by Joseph J. Green, Archivist and Genealogist, 1903, revised to date by Wm. Ernest Marsh, of Marston, Bromley, Kent, 1912. Her name is spelt Gosling.
2. Her portrait which was sold by Sothebeys 6 March 2008.
3. Her memorial stone in the Church at Bangor-on-Dee. Her name is spelt Gostling.
4. Entries copied from the Bible of Rev George Augustus Eliott Marsh.

"History of the Ancient Family of Marsh" notes the following:

Lucy Marsh (nee Gosling) died at Bangor Rectory 26 February 1845 aged 86.

A portrait of Lucy Marsh nee Gosling was sold at Sothebys 6 March 2008.  It was described with the provenance by descent to the sitter's son, the Rev. Augustus Marsh; Thence by descent to Colonel H.E. Marsh, his grandson.

There is a memorial to in the church at Bangor with the following inscription:

Lucy Marsh (mother of G.A.E.Marsh). Relict of John Marsh, formerly Chairman of the Victualling Board, Somerset Place, London, Esq. and daughter of George Gostling of Whitton Park in the County of Middlesex, Esq.  Died in February 1845 aged 87.

The portrait of her brother was sold at auction in 2004.
Portrait of George Gostling of Whitton Place, Twickenham, Middlesex, born 1744, at approximately 30 years old, wearing powdered wig and white cravat holding a scroll document, oil on canvas, bears Agnews label verso no. 31543, 77 x 64cm in carved gilt wood frame. By Nathaniel Hone.

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