Help with family research required!!!

[heathergale]

I am researching my family history and am particularly interested in finding out what happened to my late uncle Rudolph Morgenstern. He was a pilot in the Luftwaffe. We have a letter notifying the family of his 'missing in action'. It seems that on 8th April 1942 at 10.30am he took off on an observation flight with a navigator and 2 others - front and rear gunners. They flew over railways south of the Ladgasees (?). They had not returned by the next morning and therefore were reported as missing in action. However, the family had further information later that he had been seen in a Russian prisoner of war camp - not too sure. The Red Cross can find nothing. All the letters I have are in German and my German is poor! The letter reporting of him missing came from Hauptmann Hemsel, F.P. Nr L01154, Luftbaupostampt, Konigsberg. We have photographs and we believe Rudolph to be flying a Dornier DO17 Mk? The names of his crew seem to be Beobachter, Herrn Oberleutnant Harlan, Bahnerkundung - of course, this could be wrong as I am finding it difficult to interpret the letter! Any assistance, help, advice would be greatly appreciated! If anyone knew of him or his squadron etc information would be great!