Selwyn, John Thomas, Sir, 6th Baronet (1789 -1869)
Sir John Thomas Selwin, of Down Hall, Essex was the fourth son of Sir James Ibbetson, 2nd Baronet, and Jane, daughter and heir of John Caygill of Skay, near Halifax in Yorkshire and Jane sister of Thomas Selwin of Down Hall in Hatfield Broad oak in Essex. He was educated at Otley, Halifax, Eton College, and St John's College, Cambridge, to which he was admitted as a pensioner 2 July 1801, matriculated the same year, and took his B.A. in 1805. He was admitted to Lincoln's Inn 29 June 1802. When his elder brother Charles succeeded in 1817 to the Selwin estates, he took the name Selwin instead of Ibbetson. In 1825, Charles became the 4th baronet and inherited the Ibbetson estates, making the Selwin estates over to John Thomas, who changed his name by royal licence 5 August 1825 to Selwin. On 8th September in the same year he married Isabella, daughter of General John Leveson Gower, of Bill Hill in Berkshire. On 6 July 1861 he succeeded his nephew as 6th baronet. His son, Henry John, the 7th baronet, resumed the name Ibbetson in 1867, being known as Selwin Ibbetson.