[1][2] In 1938 she moved to Belfast, as a refugee on a British government permit for graphic designers, to avoid persecution under the Nazi regime.
[4] In 1959 the Council for the Encouragement of Music and the Arts, CEMA, sponsored a show of eighteen abstract paintings by Hammerschlag at the Piccolo Gallery in Belfast.
[9] CEMA also hosted Hammerschlag's work in their Chicester Street Gallery in 1962 where her paintings included a series based on W. B. Yeats' The Death of Cuchulain.
[2] When the Ulster Society of Women Artists was established in 1957, Hammerschlag was appointed as joint honorary secretary with her friend Deborah Brown.
[1] A memorial exhibition of her work was held by the Arts Council Gallery in Belfast in 1970 and an award for artists was set up in her name by her husband, the musician Heinz Hammerschlag.