BRIEF OHNE UMSCHLAG Haeckel, Carl Gottlob Author: Haeckel, Carl Gottlob Recipient: Haeckel, Ernst Dating: 16.07.1857
DOKUMENT Sethe, Wilhelmine (geb. Bölling) Author: Sethe, Wilhelmine (geb. Bölling) Recipient: Haeckel, Ernst Dating: 31.03.1857
BRIEF OHNE UMSCHLAG Haeckel, Charlotte Author: Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 06.07.1857
BRIEF OHNE UMSCHLAG Haeckel, Charlotte Author: Haeckel, Charlotte Recipient: Haeckel, Ernst Dating: 16.07.1857
BRIEF OHNE UMSCHLAG Sethe, Anna Author: Sethe, Anna Recipient: Haeckel, Charlotte; Haeckel, Ernst Dating: 26.03.1857
MANUSKRIPT Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Carl Gottlob; Haeckel, Charlotte Dating: 13.08.1857