Early life on Ohio farm. College of Wooster, A.H. Compton, Compton family AHC’s academic and extracurricular interests; Princeton years 1913-16, associations and fellowships; marriage 1916; experimentation at Westinghouse Lamp Co. 1917-19, work on “large electron” leading to National Research Fellowship at Cavendish Laboratory 1919-20, associations with Rutherford and J.J. Thompson, living arrangements, weekly colloquia, recollections of Einstein; bringing in new faculty as Chairman of Dept. of Physics at Washington Univ. 1920-23, freedom of research; Guggenheim fellowship at Punjab Univ. 1926-27, organizing Kashmir expedition, observational work and other expedition details. Reaction to AHC’s Nobel Award 1927, Nobel address and trip to Sweden.