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 a committed philanthropist, passionate about providing opportunities for all people to fully participate and thrive in our community, both through her work as an educator and administrator and through her involvement with a wide range of community organisations.

She has been a volunteer for Catherine House Inc for the past 17 years, supporting women who are experiencing homelessness, serving as chair of their Trust and Community Ambassador and working in fundraising and events during that time. She was a founding Board Member of the Roger Rasheed Sports Foundation (2011-2019) and is currently on the Board of the Adelaide Festival Centre Foundation and the Order of Australia Association SA and in 2021 founded Young Impact, a collective fundraising group for school students.

Kathryn was a pioneer in Chinese language teaching in our State and has taught since 1983 in a wide range of educational settings and also is part of the House Group of Companies which incorporates a portfolio of interests, including building, development, property management, investments and community engagement.

Kathryn devotes most of her time to helping others and supporting various not-for-profit organisations and works to raise the profile of philanthropy and the culture of giving in our community. She was recognised for her work and significant service by being appointed a member of the Order of Australia (AM) in the 2020 Queen’s Birthday Honour list.

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 having worked for several Australian companies in Sydney, Melbourne and Adelaide as well as a stint in London. Currently working for herself in the property market while volunteering in the philanthropic sector.
Justine is a strong supporter of philanthropy in South Australia particularly around helping young people of our community to help them achieve their full potential and break the cycle’s that cause long-term issues. Justine is also passionate about cancer prevention methods and works to raise money and awareness in this area to reduce cancer numbers in the long run.

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 helping SA charities raise funds and awareness for their cause. She is looking forward to raising the profile of Impact100 SA and encouraging more people to join this amazing giving circle.

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 and in her role as Executive Officer of the Coopers Brewery Foundation.

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

Sef van den Nieuwelaar

Membership Committee

Sef is a self-employed Business Software consultant, contracting to iconic SA organisations such as Coopers Brewery, National Pharmacies, Jurlique and Australian Vintage Wines.

Sef is a graduate from the Australian Institute of Company Directors and serves on the organisation’s Tomorrow’s Director Committee helping emerging Directors. He also is Chairman of Aged Care provider Rembrandt Living. Sef recently graduated as a fellow of the Governor’s Leadership Foundation. His technical knowledge of Finance and IT combined with his Governance and Leadership experience and his drive to help our most vulnerable wherever he can, will assist Impact100 in their philanthropic endeavours.


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
Julia Pitman
Kiah Elsworthy
Mike Stevens
Cate Foskett
Rosie Osman OAM

Events, Marketing & PR

Jackie Newton (Chair)
Nikki Hamdorf
Justine Crawford
Kathryn House
Jasmin Barry-Keen
Ellen Edmonds-Wilson

The sub-committee is also generously supported by Zoe Drummond and Serena Findlay from Hughes PR who assist with the preparation of our newsletters, media releases and other communication, and also assist with the preparation of a video of our annual grants night. We are also grateful to our other volunteers who generously donate resources, time and expertise.


Rachael McEvoy (Chair) 0413 296 929
Kathryn House 0418 820 914
Jasmin Barry-Keen 0467 903 716
Chris Penny
Simon Tiddy
Sef van den Nieuwelaar
Justine Crawford
Jennifer McGlennon
Jacki Bressington