OJ 11/26, [2] Handwritten and typewritten postcard from Max Gross to Heinrich Schenker, dated December 6, 1912

Max Gross confirms that he has written to Moriz Schenker but has had no reply.

OJ 11/26, [5] Typewritten letter from Max Gross to Moriz Schenker, dated January 9, 1914

Max Gross rehearses the age and situation of Wilhelm's, Heinrich's, and Moriz's mother Julia Schenker, and the existing contributions to her upkeep and rent and sacrifices made by Heinrich and Wilhelm in this regard, and demands that Moriz henceforth pay his share of the upkeep and contribution to the rent, and also write regularly to, and to visit, his mother, and warns of the legal consequences if these demands are not met.

OJ 11/26, [6] Typewritten letter with note of expenses, from Max Gross to Heinrich Schenker, dated January 18, 1915

Max Gross sends his expenses for 1914 and 1915 in the matter of Moriz Schenker [and support payments to Julia Schenker].