Paul Bäumer was a German First World War fighter ace credited with 43 aerial victories.
He then transferred to Jagdstaffel 2, where he scored the remaining 40 victories of his combat career.
Three of Bäumer's victims were opposing aces: Ronald Sykes, his fifth victory, and Lynn Campbell and William Hodgkinson, his 43rd.
Information was abstracted from Above the Lines: The Aces and Fighter Units of the German Air Service, Naval Air Service and Flanders Marine Corps, 1914–1918, p. 67, Norman Franks, Frank W. Bailey, Russell Guest.
ISBN 978-0-948817-73-1 and from The Aerodrome webpage on Paul Bäumer [1] Abbreviations from those sources were expanded by editor creating this list.