Sally has a degree in English from Oxford University and postgraduate qualifications in social administration and in leadership for collaboration from Bangor University.
Mae gan Sally radd mewn Saesneg o Brifysgol Rhydychen a chymwysterau ôl-raddedig mewn gweinyddiaeth gymdeithasol ac arweinyddiaeth ar gyfer cydweithredu o Brifysgol Bangor.