He won in 1876 riding Briseis at the recorded age of thirteen (he was actually eleven, eight days short of his twelfth birthday).
He secured the mount for the three-year-old Briseis after the regular stable jockey could not make the featherweight of 6 stone and 4 pounds (39 kilos).
Shouts and hurrahs were heard, hats were thrown in the air and one excited individual fell on his back in the attempt to do a somersault.
However, as her jockey Tom Hales was over the weight that she was allowed to carry, he recommended the young strapper - St Albans - as showing great ability as a horseman, and having a special bond with the filly.
By the age of seventeen Peter St Albans had also added the Sires' Produce Stakes and the Geelong Cup to his winnings.
The tale also contends St Albans was left as a baby on the doorstep of one of the stud grooms, Michael Bowden, and raised by him and his wife.
A colour painting by Frederick Woodhouse featuring St Albans, youthful, and very white, standing alongside Briseis with stable jockey Tom Hales in the saddle also confirms the family's story; as does a wood engraving of Briseis with St Albans in the saddle held by the State Library of Victoria.