G H (Godfrey Harold)
Hardy

Cambridge (Neurotree)


Sydney
Chapman

Oxford (MathTree)


Alfred
Fowler

Normal School of Science, London


John Stanley
Plaskett

Dominion Astrophysical Observatory


Harry Hemley
Plaskett

Oxford (Astronomy Tree)


Franz D.
Kahn

University of Manchester


Anthony P.
Whitworth

Cardiff University

Spyridon
Kitsionas

Cardiff University
(Options)

Spyridon KitsionasX