Question: Which ethnicity was the pilot, who is credited with 258 aerial victories flying the Jagdgeschwader 54, identified as?
Sentence (from "Jagdgeschwader 54"): JG 54 flew on the Eastern Front claiming over 9,600 aircraft shot down, with pilots such as Walter Nowotny, Otto Kittel, Hans-Ekkehard Bob, Max-Hellmuth Ostermann and Hannes Trautloft being termed "Experten".
Relevant evidence: Yes