Peggy has a Bachelor of Arts from Virginia Polytechnic Institute and State University and a Juris Doctor from the University of Virginia. She also has a Diploma in Superannuation Management from Macquarie University. In December 2018, she was made an Honorary Doctor of Laws by Swinburne University for her work in gender equality and developing sport leaders.
Peggy has been president of the Richmond Football Club since October 2013, having served on the Club's board since 2005. She is the first woman to be president of an AFL club. The Richmond Football Club won the 2020 AFL Premiership, following on from their 2017 and 2019 premierships. In April 2018, Peggy was appointed by the AFL to its inaugural Competition Committee which advises the AFL Commission on issues regarding the design and future of the AFL competition.
In August 2014 she was appointed to chair the Victorian Minister for Sport's year-long Inquiry into 'Women and Girls in Sport and Active Recreation'.
In August 2017, Peggy was appointed to Victoria's Ministerial Council on Women's Equality and in January2020 became a director of Vic Health.
In June 2019, she was appointed to the Australian Institute of Sport Athlete Wellbeing and Engagement Advisory Committee and, from January 2020, has been a member of the AFL Mental Health Steering Committee.
Peggy has been a non-executive director of several companies in the superannuation and financial services sectors. Peggy is also a director of Infrastructure Specialist Asset Management.
Peggy is also on the board of Women's Housing Limited, on the investment advisory panel of Home for Homes (an initiative of the Big Issue) and is an ambassador for micro-finance organisation, Opportunity International.
Peggy is a Fellow of the Australian Institute of Company Directors and is also a member of Chief Executive Women and the Melbourne Forum.