Did he have all these wounds already in Siegburg? If yes, how could he do all he has done there?
With this date we'll find perhaps the unit which picked him up? I have found some which were in Remagen on the 21st March, but there were some more:
"On 21 March 1945, the 15th FA Bn crossed the Rhine River into Germany on a pontoon bridge near Remagen, and took up firing positions near the town of Leutesdorf."
"21 Mar 1945 US First Army advanced toward Siegburg, Germany."
"On 21 March 1945, the Battalion [299th Combat Engineers] assumed the guard and maintenance of the Treadway bridge at Remagen. The Battalion also maintained roads, posted signs, and did engineer work as directed. Company A moved into Remagen this date and on 24 March Company B moved to Erpe1 [Erpel]."
Christoph