John Mulholland was president of the

Irish Republican Brotherhood The Irish Republican Brotherhood (IRB; ) was a secret oath-bound fraternal organisation dedicated to the establishment of an "independent democratic republic" in Ireland between 1858 and 1924.McGee, p. 15. Its counterpart in the United States ...

from 1910 to 1912. He was also the leader of the IRB in Scotland.

References

Year of birth missing Year of death missing Members of the Irish Republican Brotherhood {{Ireland-bio-stub