Musgrave, William, Sir, 6th Baronet, , of Hayton Castle (1735 -1800)
Sir William Musgrave, 5th Baronet of Hayton Castle, Aspatria, Cumberland, was born 8 October 1735, the second son of Sir Richard Musgrave, 3rd Baronet of Hayton Castle, and Anne, second daughter of John Hylton of Hylton Castle, County Durham. He was educated at Houghton Spring School, and entered the Middle Temple 7 April 1753, was called to the bar 5 May 1758, Bencher 2 May 1829, Reader, and Treasurer 1795. He succeeded to the baronetcy, as 5th Baronet, but not apparently to the family estates, on the death of his elder brother 16 June 1755. On 10 December 1759 he married Isabella Dowager Countess of Carlisle. He was a Commissioner of Customs 15 March 1763, a Fellow of the Royal Society 14 March 1774, Vice President 1780; Fellow of the Society of Antiquaries 12 November 1778, Vice President 1786; Trustee of the British Museum 1783 and Commissioner of Accounts in 1785. He was the author of Musgrave's Obituary, an index to obituaries in books and periodicals, the manuscript of which he left to the British Museum, and the English entries of which were published by the Harleian Society between 1899 and 1901. He left to the Museum any of his books which might be wanted by the Museum Library. A great number were taken, but they were not kept together as a collection, but distributed among the other books.