Sir William Billers FRS (1689 – 15 October 1745) was an English haberdasher who was Alderman, Sheriff and Lord Mayor of London.
[1] He was born in Thorley, Hertfordshire, where the Billers family, who originated from Kirby Bellars in Leicestershire, owned Thorley Hall and manor.
He married Anne (c. 1711–1750), daughter of Sir Rowland Aynsworth and Sarah Fleet (daughter of Sir John Fleet, Lord Mayor of London in 1693), by whom he had two sons and four daughters: John, William, Martha, Anne, Elizabeth, and Maria.
His eldest daughter Anne, who married John Olmius (later Baron Waltham) was his eventual heiress.
[5] After his death, his extensive library was auctioned by Christopher Cock at his house in the Great Piazza, Covent Garden on 22 November 1745.