Hamburger obtained his Ph.D. from the University of Munich in 1914 under the supervision of Alfred Pringsheim[REF] and after war service obtained his Habilitation for a thesis on Extensions of the Stieltjes moment problem.
He was married briefly twice, to Malla Jessen in 1927 and to Vera Schereschevsky two months prior to his death in 1956 [REF].