"[1][4] H.F. spent the rest of 1913 and part of 1914 Jolowicz in Germany studying under the highly regarded Romanists Ludwig Mitteis [de] at Leipzig and Otto Lenel at Freiburg.
[1] In 1919, after the war, Jolowicz was called to the bar by the Inter Temple as a pupil of Henry (later Lord Justice) Slesser, whose chambers he eventually joined.
[1] At University College he also served several administrative functions (including Dean of the Faculty of Law), while maintaining full tutorial and lecture duties.
[3] Directly before the outbreak of World War II, Jolowicz rejoined the armed forces, this time as an intelligence officer[1][4] whose duties included work related to the Enigma project.
[7] Jolowicz died on 19 December 1954 in Oxford at the Acland Nursing Home,[1] after apparently having recovered from a serious illness.