Ehrlich frequently depicted children and young people in his sculptures, often as symbols of hope. His earliest sculpture of this title was made in Vienna in 1932. This cast of 'Two Sisters' (1944) is also available in a slightly larger format (125 cm), and a third version was sold to Essendon Primary School, Welwyn Garden City in 1947 as part of the Hertfordshire schools' initiative in which architects were encouraged to work with muralists and sculptors. The inscription suggests that it was originally cast as a private memorial to his wife Bettina's sister, Mira Marie Bauer (afterwards von Gutman), who died in 1944; the sisters' aunt was Adele Bloch-Bauer (famously painted as 'The Woman in Gold' by Gustav Klimt) and they were cousins of Maria Altmann, who later fought a case for the restitution of the painting to the family.