Sir Walter Long, 2nd Baronet (1627 – 21 May 1710) was born in Wiltshire, the son of Sir Walter Long, 1st Baronet of Whaddon and his wife Mary Cox.
In 1660 Walter's father had built a large addition to Whaddon House, which was surrounded by parkland.
Whaddon Grove Farm now stands on the site of the House, there remains a 17th-century back door in a moulded frame, and there are two stone former dairies.
In 1706 Long purchased an estate in Sutton Veny, Wiltshire, which included Polebridge Farm.
[2] Walter Long, 2nd Baronet, died unmarried at his house in James Street, Covent Garden, London, and the baronetcy became extinct.