I would be very grateful if you could let me know if such a writing is still wished and needed.
With excellent respect
The following letter is Charlotte Salmon's obvious response:
Miss Helen Dukas April 20, 1939
112 Mercer Street
Princeton, New Jersey
Dear Miss Dukas:
Thank you very much for your cordial note about Thomas Doeppner. It would, of course, be very valuable for him to have an endorsement by Professor Einstein. So far we have not been able to get a scholarship for him, and it is not certain that he would be able to get a student visa even if he had a scholarship. However, we shall continue to try for a scholarship and we will be very grateful for your help.
Charlotte S. Salmon