Red Alligator was a champion Thoroughbred racehorse who won the Grand National in 1968.
Owned by Mr J Manners, he was trained by Denys Smith in County Durham and ridden by Brian Fletcher.
Jockey Fletcher was 19 at the time and went on to ride Red Rum to his first two victories in the Grand National.
In the previous year's race, Fletcher had also ridden Red Alligator but had been one of the many whose chances were thwarted by the infamous “Foinavon pile up” at the 23rd fence.
He was rumoured to be drugged in the stables before the start as he did not run anywhere near to his full potential Red Alligator's Grand National win was commemorated by a local brewery who renamed a pub near Denys Smith's farm outside Bishop Auckland in his honour.