Sandra McMahon grew up in Sydney but has lived and worked in regional NSW for the past 33 years. She is currently the Co-Director and owner of Weswal Gallery, a commercial gallery in Tamworth. Prior to this she was the Director of Tamworth Regional Gallery and Manager of the Tamworth Powerstation Museum, the Curator at the Western Plains Cultural Centre, Dubbo, and Gallery Assistant at Helen Maxwell Gallery in Canberra and at the Goulburn Regional Art Gallery as the Education / Public Programs Officer. Sandra originally trained as a painter, and was a part-time visual arts teacher at TAFE NSW at Moree, Quirindi and Tamworth Campuses.
Sandra has a Diploma in Visual Arts and a Graduate Diploma in Art History and Curatorship from ANU; Cert IV in Business; Cert IV in Training Assessment and Education; and a Diploma of Management. Recently she has become a registered Art Valuer under the Australian Government Cultural Gifts Program.