First choice: A. Einstein (see entry 16-1, 1922).
Second choice: C. Fabry (see entry 16-1, 1922).
Third choice: G. Gouy (see entry 16-1, 1922).
Fourth choice: P. Langevin.
Fifth choice: J. Perrin.
Sixth choice: P. Weiss.
Einstein received the 1921 prize in physics in 1922.