Who we are Meet the Team Our Board Arthur McWilliams Arthur joined the Staf Board as Treasurer in March 2018. A Chartered Accountant, Arthur qualified with Grant Thornton UK LLP before he enjoyed a successful career in the financial sector, which took him across the UK and to LA. Arthur has a wealth of experience in the third sector as a founding member and chair of St Mary's Friends of South Africa, established in 2002. Prior to embarking on his career in finance, Arthur was the lead guitarist in a band with former Home Secretary Lord John Reid. Arthur retired in July 2017 and is enjoying spending more time with his wife, four daughters and four grandchildren.