In der Nacht vom 24. auf den 25. Juli 1943 begannen die Großangriffe auf Hamburg. Im Beobachtungslogbuch der Sternwarte Bergedorf – Lage – findet sich an dem Tag folgende Eintragung:
Berichte der Polizei und Feuerwehr Hamburg – vom US Verteidigungsministerium ins Englische übersetzt und aufbereitet. Obwohl die Seiten eine sehr niedrige schwarz/weiß Scan-Qualität aufweisen, sei vor ein paar Photos gewarnt:
The document presents information on air attacks and on civil defense preparations and accomplishments in the city of Hamburg , Germany www.dtic.mil/docs/citations/AD0680459 - 1968-12-01
This document presents information on attacks and on civil defense activities in the city of Hamburg, Germany, during and after the large scale www.dtic.mil/docs/citations/AD0681075 - 1968-12-01
Examination of Air War Experiences
Damage Site HAMM, Grammar School Marienthaler Strasse
Cause of Damages: High Explosive Bomb
Object of Investigation: Rescue Station in a Grammar School
[…] The explosive bombs landed 35 to 40 meters from the school.
The outer wall reinforcements showed extensive splinter damage. The shelters remained undamaged. All sich persons and persons that took shelter were able to leave through the two shelter exits.
Information recorded by the Hamburg Fire Department during World War II has been summarized and analyzed to evaluate several operational parameters [...] residential buildings over the 11-day period. The Hamburg Fire Department units, on the other hand, performed more or less continuously over the 11-day period with a continuously decreasing efficiency; […]