My choices for the British Hall of Fame for 1903 are:
Captain Robert Barclay (Walking) – Achieved the most famous feat in walking of the 19th century when in june and July of 1809 he walked one mile in every hour for 1000 consecutive hours on Newmarket Heath.
Jem Mace (Boxing) – The last great British prizefighter who brought boxing into the modern era. British middleweight and heavyweight champion. He was regarded as an unofficial world champion, fighting in Australia and America.
Will Scott (Horse Racing) – Rode 19 English Classic winners between 1821 and 1846, including nine St.Legers and four Derbys.
W.B.Woodgate (Rowing) – Won eleven times at Henley in six different events from 1861 to 1868. In 1862 he won three events and dead-heated in the Diamond Sculls. Three times English amateur sculling champion and twice in the winning Boat race crew.