Jodrell Bank photographs, various individuals Photograph one features Hanbury Brown and C Hazard looking at the output of the 218 foot paraboloid. Photograph two (2 copies, annotated) features R C Jennison and M K Das Gupta. with the radio intensity interferometer, 1950 Hazard, Jennison and Das Gupta were Hanbury Brown's research students. c1949-c1955