From the Officer Career Database (
http://www.ww2.dk/lwoffz.html):
HENSELER, Wilhelm. 10.05.37 began flight training. (n.d.) with I./NJG 101 and 9./NJG 101. 30/31.08.43 Lt., 4./NJG 1. 26.11.43 Lt., 4./NJG 1. 25.12.43 Oblt., appt Staka 4./NJG 1 (to 03.03.44). Early 1944 with Kommando Schreckenberger. 27/28.04.44 Oblt., with 1./NJG 1. 25.05.44 Oblt., 1./NJG 1. 02.10.44 Oblt., appt Staka 2./NJG 1 (to 08.05.45). Credited with 11 victories in 77 missions.