I didn't know that there was a Jewish community in Jakobstadt (now Jēkabpils). That is where my maternal grandfather Dr. [Isidor] Hermann GUNZENHÄUSER, an Oberarzt (supervisory physician) in the German Army, lost his left eye due to shrapnel on September 29, 1917, not long after having been transferred from the western front. See attachment. Of course, a Jewish community in 1958, doesn't imply one in 1917.