Ernest William MacBride was a marine biologist and one of the last supporters of Lamarckian evolution. He served on the Council of the Zoological Council of London for over thirty years and acted as Vice-President
Major Stanley Smyth Flower was an English army officer, science advisor, administrator, zoologist and conservationist.
He was the second son of Sir William Henry Flower and his wife Georgiana Rosetta. He was Vice-President of the Zoological Society of London from 1927 to 1929.
Sir John Bland Sutton was a British Surgeon. He was President of the Royal Society of Medicine between 1920 and 1922 and of the Royal College of Surgeons of England from 1923 to 1925. Interested in zoology, he served as Vice-President of the Zoological Society of London