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Meet the Trustees

Roy Witter


Roy became Chair of Rushey Green Time Bank in 2018. Roy comes from a background of mechanical and electrical engineering and renewable energy with a BA in Business and Management. His skills include project and bid management, strategic analysis, relationship and team building skills, and mentoring. His interests include local people, the environment and community issues. Roy is an ardent believer in inspiring people and bringing out the best in them!

Jonathan Prince MBE

Vice Chair of Trustees

Jonathan is an internationally experienced project & programme manager, Chairman and facilitator with thirty years’ track record of working in senior roles for private, public and third sector organisations. His experience includes delivering multiple stakeholder projects, complex logistics, political sensitivity, developing vision, scope and implementing initiatives that make organisations more commercially robust and sustainable. He specialises in problem analysis, strategic business planning, leadership developing effective internal and external relationships.


He is a business mentor at Regents University, visiting professor at EADA Business School in Barcelona and a visiting marketing tutor at The University of Greenwich. Jonathan is currently founding Chairman of the Blue Ribbon Foundation and has an Honours degree in Chemistry.

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Susan Ryder


Susan joined Rushey Green Time Bank, as a member in 2014, and a trustee in 2015. She has a background in pedagogy, a degree in IT and Education and is a trained and qualified Careers Adviser with over 30 years working as an educator from early years 0-5 to older people aged 55+. 


Susan currently runs a Coding and Robotics Club for children, is a member of the Lewisham BAME network, co-runs a Menopausal Café and a podcast for women talking about their health and wellness after 40.

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Dr Allison Streetly OBE


Allison is a public health professional, studied social & political sciences at Cambridge University and St Thomas’ Hospital and completed her Masters in Public Health at the London School of Hygiene and Tropical Medicine.


She is currently Deputy National Lead for Healthcare Public Health in Public Health England (PHE). From 2003-2013 she was National Programme Director of the NHS Sickle Cell and Thalassaemia Screening Programme which she set-up from scratch to full implementation. She is also a part-time Senior Lecturer at Kings College London, a fellow of the Faculty of Public Health and registered with the General Medical Council as a specialist in public health. Her experience includes leading teams, working in partnership and delivering multiple and complex projects.


She is interested in social issues and ways to reduce inequalities and build a more inclusive society both nationally and locally. She has lived in Lee Green for over 20 years and grew up in Trinidad coming to the UK aged 13.

Gemma Juma

Gemma grew up in South East London and has loved living in Lewisham since 2002. She is Deputy Chief Executive at the Jack Petchey Foundation, which focuses on inspiring, motivating and celebrating young people across London and Essex. Over her career she has worked and volunteered for a range of local, national and international charities in policy, delivery, leadership and grant making roles. Gemma Chairs the London Funders Children and Young People’s network and is an Advisor to the Paul Hamlyn Foundation’s youth and migration programmes. Gemma joined the Board of Trustees in February 2021.

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Joyce Jones DMS.MBA. 

Joyce has a wealth of experience project management and has worked at a senior level arranging Governance for strategic supplier contracts and qualitative and financial performance. She is an expert in sustainable procurement, bid management and strategic contract management. She has worked across Public Health services, Education services and Engineering infrastructure and chaired Governance operational and strategic meetings with senior stakeholders.


Joyce has worked with a diverse range of people within the community at grass roots and at corporate levels. She advocates RGTB’s aims of reducing isolation and loneliness.  She has knowledge and experience, within the public sector and working across a portfolio of service areas. Her core reason for getting involved is that she wants to give back to the community through using her skills and experience.  

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