William Dockwra was an English merchant who along with his partner Robert Murray created the first Penny Post in London in 1680. In latter 17th century London there was no official postal system for mail delivery within the city of London and its suburbs. Dockwra's London Penny Post was a mail delivery system that fulfilled this need. His system worked so well that it compromised the interests of private couriers and porters and royal officials alike.

Robert Murray was an English financier, writer on commerce, and Whig conspirator. He is now remembered for his part in the first London Penny Post.