The X-ray Analysis Group was established in 1943 to 'provide a meeting ground for those interested in the theory and practical applications of X-ray diffraction' (MS. Eng. c. 5663/3). Hodgkin was elected to the committee in 1944; she also sat on the Fourier Service Panel, which discussed methods of crystallographic calculations.

Conferences were held regularly by the Group, and material relating to them is to be found in the chronological sequence of papers and correspondence, MS. Eng. c. 5663/3-18, MS. Eng. c. 5664/1-10.