Meet our Executive Team

Tom O'Connor

Chief Executive

With more than two decades’ experience across the charity sector, Tom brings extensive leadership expertise from both national and international organisations.

Prior to joining Rennie Grove Peace, Tom was Chief Executive of London-based homelessness charity, Providence Row, as well as serving as Chair of Trustees for Shaftesbury UK, a disability charity focused on empowerment and inclusion.

His previous roles include Director at CAFOD (Catholic Agency for Overseas Development), where he oversaw fundraising, volunteering, education and supporter engagement across England and Wales.

Jackie Tritton

Chief Clinical Officer

Jackie trained as a registered nurse in 1981 and is qualified in both palliative care and oncology nursing. She worked at the Royal Marsden hospitals and was a District Nurse and a Macmillan Nurse, working in the community for over 12 years. Later she became the lead nurse for Cancer and Palliative care in Luton, working across both hospital and community settings and was appointed the Mount Vernon Cancer Nurse Director for one of the 32 national cancer networks.

Jackie specialises in child bereavement and was one of the co-founders of Chums which is now a Bedfordshire wide charity providing Mental Health and Emotional Wellbeing Services for Children and Young People. She was the Director of Patient Services at Peace Hospice Care from 2012 before stepping into the role of Interim CEO in 2020 to lead on the merger discussion with Peace Hospice Care and Rennie Grove. Since the merger announcement Jackie has been appointed as the Chief Clinical Officer for Rennie Grove Peace leading with responsibility for the delivery of the Patient/ Clinical services across West Herts and Buckinghamshire.

Sarah Klinger

Medical Director

Sarah Klinger is the Medical Director and a Consultant in Palliative Medicine. Sarah worked at Peace Hospice Care since 2013 and prior to this was a Specialist Palliative Medicine Specialist Registrar on the London Deanery Training Scheme. Sarah holds an MSc in Palliative Medicine and was awarded Fellowship of the Royal College of Physicians in 2017. She is responsible for the provision of specialist palliative care medical services to patients at Rennie Grove Peace Hospice Care and is the Caldicott Guardian for the organisation with responsibility for the secure handling of clinical information.

Tim Gray

Finanace Director

Tim joined Rennie Grove Peace in May 2026 as Director of Finance. He has worked across the retail, construction and manufacturing sectors, holding senior finance leadership roles and helping organisations improve performance and navigate change. Alongside leading the charity's finance function, Tim also has responsibility for ICT. Outside of Rennie Grove Peace, he is a Trustee of a Multi Academy Trust in Northamptonshire, supporting the governance and financial oversight of a group of schools.

Rozina Ahmad

Director of People

Rozina is Director of People and Culture and has worked within hospices since 2002. After working in banking, fundraising and volunteer management she moved into HR and is a Chartered Member of the Chartered Institute of Personnel and Development. Rozina volunteered on the Executive Committee of the Association of Volunteer Managers in Palliative Care (AVSM) from October 2009 to November 2016 and was a Trustee of the Volunteer Centre in Dacorum from September 2007 to April 2016. She currently co-ordinates membership of the Hospice London and South East HR Network, is the Chair of the South Central and part of East of England HR Regional Forum and is a member of the Hospice HR Leads National Network run by Hospice UK.

Tracey Hancock

Director of Fundraising

Tracey is Director of Fundraising and joined Rennie Grove in 2018. After roles in publishing and PR, Tracey moved into fundraising and has over 13 years’ experience in senior fundraising roles. Having focussed on healthcare, she has worked with The National Rheumatoid Arthritis Society, Roald Dahl’s Marvellous Children’s Charity and within the hospice sector with Thames Hospice Care and Sue Ryder. Tracey is a mentor for the Rank Foundation and the Tony Elischer Foundation.