In which year was this Nazi Party paramilitary rank created that Emil Ketterer belonged?
Obergruppenführer Obergruppenführer (] , "senior group leader") was a Nazi Party paramilitary rank that was first created in 1932 as a rank of the "Sturmabteilung" (SA), and adopted by the "Schutzstaffel" (SS) one year later. Until April 1942, it was the highest commissioned SS rank, inferior only to "Reichsführer-SS" (Heinrich Himmler or RFSS, which was the internal SS-abbreviation for Himmler) Translated as "senior group leader", the rank of "Obergruppenführer" was senior to "Gruppenführer". A similarly named rank of "Untergruppenführer" existed in the SA from 1929 to 1930 and as a title until 1933. In April 1942, the new rank of "SS-Oberst-Gruppenführer" was created which was above "Obergruppenführer" and below "Reichsführer-SS".
Alter Kämpfer Alter Kämpfer (German for "Old Fighter"; plural: "Alte Kämpfer") is a term referring to the earliest members of the Nazi Party, i.e. those who joined it before the "Reichstag" elections of September 1930, with many belonging to the Party as early as its first foundation in 1919–1923. Those who joined the Party after the electoral breakthrough of September 1930 were known to the "Alte Kämpfer" as Septemberlings while those who joined the Party after the assumption of power on January 30, 1933 were known as the "March Violets". As the party's "Old Guard" and of proven dedication to the movement during its so-called "Period of Struggle" ("Kampfzeit") in 1925–1933, they were distinguished from the flood of new members who joined in 1933 and later for opportunistic reasons. A number of special awards/insignia were instituted for this purpose: