Details imported from Luton Absent Voters list 1918. Also included in National Roll of the Great War Section V (Luton).

The National Roll details (usually submitted by the family) describe Lieut Steff as "Volunteering in Sept 1914 with the RNAS, he was engaged on important patrol duties and served in the battle of Jutland in HMS Inflexible. Later he was transferred to the Mediterranean and patrolled the region of the Aegean Islands and was sent to Constantinople with the Army of Occupation. He was still serving in 1920."