Thomas James Willmore (16 April 1919 – 20 February 2005) was an English geometer. He is best known for his work on Riemannian 3-space and harmonic spaces. Willmore studied at King's College London. After his graduation in 1939, he was appointed as a lecturer, but the onset of World War II led him to working as a scientific officer at RAF Cardington, working mainly on barrage balloon defences. During the war, he found the time to write his Ph.D. on relativistic cosmology, and gained his Ph.D. on Clock regraduations and general relativity as an external student of the University of London in 1943 [1].