Little was known about Auschwitz when Haining died. Robertson writes that a 1944 Church of Scotland report stated that she had been sent to a "detention camp for women in Auschwitz in Upper Silesia", and her family's tombstone in the Irongray churchyard near Castle Douglas placed her death in Germany. The Scottish Mission in Budapest unveiled a memorial tablet for her in 1946. In June 1948 two stained glass windows in her honour were installed in the vestibule of Queen's Park Govanhill Parish Church in Glasgow, where she worshipped.