Karl Friedrich Johannes Kuhlo (* 8 October 1856 in Gohfeld, now Löhne, Germany, † 16 May 1941 in Bielefeld-Bethel, Germany) together with his father Eduard Kuhlo, founded the German Protestant Posaunenchor (trombone choir/church brass ensemble) movement.
Working in collaboration with the Bielefeld instrument maker Ernst David he developed the kuhlohorn for use by the ensembles (among other brass instruments).
see German version of this page for a lot more information