Mount’s ancestors were in business as stationers in the vicinity of Tower Hill, London from the late seventeenth century. His grandfather John Mount established himself as a Berkshire squire by purchasing the Wasing estate in 1760. He served as sheriff of the county in 1770 and died in 1786, after bequeathing £13,500 to his wife, an annuity of £1,000 plus £8,000 to his son John, and a total of £30,000 to his sons Edmund, Harry and Richard, and daughters Harriet, Jane, Louisa and Mary Christian. His residuary legatee and sole executor was his eldest son William Mount, who inherited landed property in Berkshire, Hampshire and Surrey, and a house, shop and warehouse at Tower Hill. He seems to have continued the family business, which was styled Mount and Davidson during the 1790s, until about the turn of the century. He extended and consolidated his holdings of land in the Thatcham area of Berkshire and became captain commandant of a corps of volunteer cavalry raised in 1803. In his will, dated 8 June 1809, he left his wife £2,000 and an annuity of £1,500, and his daughters Emily, Laura and Maria legacies totalling £21,000. The residue of his personalty, which was sworn under £70,000, and all his real estate, including property at Tower Hill, passed to his only surviving son William.
At the 1830 Berkshire election Mount proposed the re-election of Robert Palmer, an ‘independent’ Member who had served ‘with honour’ on the finance committee.
Mount died in April 1869. By his will, dated 21 Jan. 1858, he settled £1,000 a year on his wife and left £24,000 to his two surviving younger children. He was succeeded by his elder son William George Mount (1824-1906), Conservative Member for South Berkshire, 1885-1900.
