WIA FC/1906/7/4 | Warburg, Felix to Warburg, Aby and siblings 21/12/1906 | thanks Warburg for a copy of his essay 'Arbeitende Bauern'; he read it with great interest; is... |
WIA FC/1909/2/45 | Warburg, Mary to Warburg, Aby 15/09/1909 | thanks him for cable; hopes that the congress will not be too much for Warburg; Mary will speak... |
WIA FC/1909/2/61 | Warburg, Mary to Warburg, Aby 25/09/1909 | thanks him for a long letter, the report of his lecture and the echo it had; Jim [James Loeb... |
WIA FC/1909/2/63 | Warburg, Aby to Warburg, Mary 26/09/1909 | asks her to order double windows, winter windows, from [Fritz] Schumacher; she could also ask... |
WIA FC/1909/4/2 | Warburg, Felix to Warburg, Aby and Warburg, Mary 10/12/1909 | thanks Mary for her letter; hopes that everybody is well; agrees with suggestions about support... |