Our Team

If you would like to join one of our committees, please get in touch with Chairperson Kathryn House kathryn@impact100sa.org.au.


Jane Doyle

Jane has been part of SA’s media landscape for more than 30 years. An accomplished print journalist before moving to radio and television, Jane has presented Seven News for 28 years. Jane is passionate about arts and community, and Chairs Carclew, SA’s peak Youth Arts body. She is also Patron of both the Mental Illness Fellowship of SA and Flinders Medical Centre Foundation in addition to being a Cabaret Festival Advocate.

Carolyn Hewson

Carolyn Hewson AO. B.Ec. (Hons) MA (Econ.), FAICD is a former investment banker with more than 30 years of experience in the financial sector. Ms Hewson is a non-executive Director of two listed Australian companies – BHP Billiton and Stockland Group. She has also served as a Director on the Boards of the Australian Gas Light Company, AGL Energy, AMP, BT Investment Management CSR, South Australia Water, the Economic Development Board of South Australia and Westpac Banking Corporation. In 2009 she was made an Officer in the Order of Australia for her services to the community and to business.

Raymond Spencer

In 2009, Raymond Spencer returned to Australia following 35 years of living and working in the USA, India and Europe. Raymond was appointed Chairman of the Economic Development Board in January 2011 and in an additional leading appointment also serves as Chairman of the South Australian Health and Medical Research Institute (SAHMRI). Raymond is Chairman or a board member of a number of private and public companies in Australia and the USA. He holds more than 35 years of leadership in international business management, organisational culture and mergers and acquisitions.

Kevin Scarce

Adelaide-born Rear Admiral the Honourable Kevin Scarce AC CSC is a retired Royal Australian Navy officer who served as the 34th Governor of South Australia from August 2007 to August 2014. Since ending his term as Governor of South Australia, Kevin has remained active in the State’s not-for-profit sector appointed to positions including Chairman of the Cancer Council of South Australia and President of Novita Children’s Services. Kevin is currently the 16th Chancellor of the University of Adelaide.

Management Committee

Kathryn House


Kathryn is an educator with a passion for working to provide opportunities for all people to fully participate and thrive in our community, without disadvantage. Supporting several charities, Kathryn is also on the Board of Roger Rasheed Sports Foundation and was previously Chair of Catherine House Trust. Kathryn has a background in aged care, fundraising and association management, and is particularly interested in finding solutions to ending homelessness and disadvantage in our community.

Rachael McEvoy


Rachael is currently a senior HR consultant at professional services firm, Deloitte. Prior to this appointment, she worked in various executive support roles including Jaquillard Minns, a Chartered Accounting practice with a strong focus on philanthropy, and it is through this role that she was introduced to Impact100 SA and the simple concept of collective giving. A passionate philanthropist, Rachael is particularly interested in supporting children from all socio-economic backgrounds to have every opportunity to live full happy lives.

Ellen Edmonds-Wilson


Ellen has extensive experience in board management and corporate governance having held national and state based CEO roles, including the Australian Medical Association SA Branch, the Medical Indemnity Industry Association of Australia and the Equestrian Federation of Australia. Through these roles she has gained valuable experience in fundraising, marketing, finance, recruitment, strategic planning and Board management. With various appointments to Boards, Ellen has most recently been a peer support mentor for families of children who are newly diagnosed with Type 1 Diabetes through the Juvenile Diabetes Research Foundation.

Justine Crawford

Chair, Marketing & PR Committee

Justine is experienced across multiple business disciplines including communications, analysis, and business development. She has worked in multiple professional roles primarily in communications and the internet and more recently in personal property development and management along with volunteering in the philanthropic sector. Justine is passionate about making positive change and leading by example.

David Walker

Chair, Grants Committee

David has an extensive background in management and operational performance. Roles have include South Australian iconic organisations, of Hills, Sabco, Faulding Pharmaceuticals, Santos and Top Australia.

David is a strong supporter of collaborative philanthropy in South Australia. In particular providing young people of our community the necessary support to succeed in achieving their full potential.

Clare Randall

Membership Committee

Clare has a range of grant management experience in government and philanthropic sectors and currently leads the work of Awesome Foundation, a giving circle focused on supporting awesome local ideas. Clare has held a range of positions in the non-profit sector and is passionate about supporting young people to realise their potential and supporting the growth of philanthropy in South Australia.

Jackie Newton

Chair, Events Committee

Jackie is an experienced hospitality management professional with over 25 years of experience in events, sales, business development and sponsorship. She is currently employed by the Hurley Hotel Group.

Jackie is passionate about providing a brighter future to at risk children and will embark on her first walk as an ATO with Operation Flinders in 2020. She is looking forward to raising the profile of Impact100 SA and encouraging more people to join this amazing giving circle that helps raise funds and awareness of the many worthy charities that are in our community.

Geoffrey Walsh

Membership Committee

Geoff has had long term experience in management and corporate governance.
He was responsible for actioning the merger to create the Australian Institute of Company Directors in South Australia and the Northern Territory and has worked as an educator in the area of corporate governance in Masters Programmes with Uni SA and MARC. He serves on a number of Boards and manages a Family Charitable Trust.
Geoff has worked with various charity organisations for many years in support of sick, special and at risk children including Variety, the Children’s Charity and Operation Flinders Foundation where he was part of the Field Management team and is now an Ambassador. He is an avid supporter of charitable works especially organisations who work within the above framework.

Jasmin Barry-Keen

Management & Membership Committees

Jasmin brings her wealth of experience in executive administration and marketing coordination to both the Management & Membership Committees.

After choosing to become more involved in the South Australia philanthropic sector, she has gained knowledge of grant making strategy and board management through her work with local family foundations.

Jasmin is a passionate supporter of the arts and creative industries and believes in being a vocal advocate for philanthropy in South Australia.


In addition to the Management Committee, our sub-committees are comprised of generous individuals who donate their time, expertise and passion.


David Walker (Chair)
Clare Randall
David McGlennon
Philip Huestis
Simon Tiddy
Julia Pitman
Kiah Elsworthy
Mike Stevens

Noel Grieve
Chair – Ailsa Young (October 2020)
Dave Stock
Marilyn Chambers

Events, Marketing & PR

Jackie Newton (Chair)
Justine Crawford
Ellen Edmonds-Wilson
Julie Adair-Cullen
Gabrielle Agnew
Nikki Hamdorf
Caitlin Jones
Kyla Ward
The sub-committee is also generously supported by Haley Tamblyn and Serena Findlay from Hughes PR who generously donate resources and expertise.

Louisa Zerella


Philip Rundle 0412 000 498
Geoff Day OAM 0412 506 453
Geoffrey Walsh 0412 000 498
Kathryn House 0418 820 914
Rachael McEvoy 0413 296 929
Jasmin Barry-Keen 0467 903 716
Chris Penny
Simon Tiddy

Julia Steele-Scott
Natalie Fuller