The Lost History of Sidney Nolan’s Adelaide Ladies is a lecture by author and scholar Andrew Turley exploring the themes, hidden identities, and secrets in the iconic Australian artist's 1964 series of 60 portraits painted after the Adelaide Festival. Presented by David Roche Gallery as part of South Australia’s History Festival 2026 and supported by the Sidney Nolan Trust, the event takes place on May 7, 2026, from 6:00 PM to 7:15 PM ACST. Turley, who has dedicated 12 years to Nolan's mid-twentieth-century works including Auschwitz, Adelaide Ladies, and Africa, shares insights published in outlets like The Guardian and the National Portrait Gallery. The ticket includes one beverage on arrival, with limited on-site parking available and wheelchair accessibility provided.