St. Leger family of Lt. Col. (later Major-General) Anthony St. Leger, and ran for the first time over a two-mile course on Cantley Common in Doncaster. The classic race, The St. Leger, has been run at Doncaster ever since. Most St. Legers in the UK today descend from Sir Anthony St. Leger, KG of Ulcombe, Kent. The Viscounts Doneraile, whose seat was at Doneraile, Co. Cork, in Ireland, descend from Sir Anthony's first son, William, and the Heywards Hill branch of the family, also originally of Co. Cork, descend from his second son, Warham. (The account given in the "Peerage of Ireland" by
Gunner B offered at odds of 8/1 for the St Leger Stakes. He then produced a creditable effort in defeat in an on mile handicap at Beverley, finishing third under a weight of 141 pounds. When Gunner B contested the Gordon Stakes, a recognised St Leger trial at Goodwood however, he ran poorly and finished last of the six runners. Gunner B bypassed the St Leger, running instead in the Doonside Cup over eleven furlongs at Ayr Racecourse in which, ridden by Mercer, he was required to concede weight to older horses including Patch (Great Voltigeur Stakes), Rymer (Brigadier Gerard Stakes) and