Correspondence received by Gertrude Langer (nee Freschl / Fröschel) from family and friends, her husband Karl Langer, artists and arts administrators, journalists and readers of her art exhibition reviews. Correspondence from family members include her father Alois Freschl, her mother Channa (Anna) Fröschel, her sister Lisl Goldhammer (later Lisl Korn), her nephew Hans Georg / Yochanan Goldhammer ('Hansi'), her sister-in-law Magda Rosse-Langer, (nee Magda Langer, formerly Magda Blaschko, then Magda Rosse), her nephew Karl Rosse ('Karli'); her cousins Oszkar Ascher and Hedwig Ascher (children of her aunt Pauline 'Paula' Ascher, nee Freschl), her father-in-law Karl Langer senior and Resi Mödler (her and her sister's nanny, and their mother’s housekeeper). Correspondence from friends include Kathleen Campbell-Brown, Henriette ‘Henni’ Cornfield (nee Zerkowitz), Paul Engel, Stefan Goldhammer, Ernst Greiff, Mary Grosser, Dorothy Helmrich, Hanni von Maltzahn, Felix Morgenstern, Robert Rosenthal, Edward 'Teddy' Sachs. Correspondence from Australian artists include Barbara and Charles Blackman, Betty and Roy Churcher, Marjorie and Lloyd Rees, Kath and Len Shillam. The correspondence also Includes cards received from dignitaries (governors, politicians and ambassadors) as well as cards with original art works and prints, including from Douglas Annand, Betty Churcher and Roy Churcher, Margaret Cilento, John Coburn, Laurence Hope, Daphne Mayo, Mary Norrie and Angus Norrie, Lorie Sachs, Kath Shillam and Len Shillam and Josef Strzygowski.