Which mathematics positions did Alfred North Whitehead hold in London?

After moving to London in 1910, Alfred North Whitehead held the following positions related to mathematics and academia:

• University College (London): He was appointed to the staff in 1911.1
• Imperial College of Science and Technology: He became the professor of applied mathematics in 1914.1
• Mathematical Association: He served as president of the association in 1916.1

Additionally, while not strictly mathematics-specific, Whitehead held several significant administrative and academic leadership roles in London, including chairman of the governing body of Goldsmiths’ College (1919–1924), member of the Senate of the University of London, chairman of its Academic Council, and dean of its Faculty of Science.1