Verlustlisten Deutsches Reich 1. Weltkrieg, page 24249: Hagelberg Hermann (Hamburg)
Verlustlisten Deutsches Reich 1. Weltkrieg
You can report transcription errors here. (It is only a transcription error if, for example, the source reads "Wilhelm" but "Wihlem" was transcribed. It is not a transcription error if the source reads "W." and you suspect it should be "Wilhelm".)