Harold Bolingbroke Mudie

In November 1903 he founded the gazette The Esperantist, thanks to a financial guarantee by William Thomas Stead; nevertheless, the magazine proved profitable.

When the magazine was united with The British Esperantist, in January 1906, he joined its editorial committee.

Eduard Stettler nominated him "president since his birth", because of his great rhetorical ability.

He was a member of the Lingva Komitato, the precursor to the current Akademio de Esperanto.

A new president of the World Esperanto Association was not appointed until 1919—the previous vice-president, Hector Hodler.