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Who We Are

Christopher Dingwall, Trustee and Vice-Chair SGLH

Christopher Dingwall

Vice-Chair and Honorary Research Adviser (currently on sabbatical)
Trustee 2015 – present


Christopher is an independent heritage consultant and lecturer on garden history and conservation. He was Conservation Officer for the Garden History Society in Scotland from 1992 to 2004 and since then has been our Honorary Research Adviser.

Matthew Benians, Trustee SGLH

Matthew Benians

Chair SGLH
Trustee 2019 – present


Matt studied Landscape Architect at the Edinburgh College of Art (Herriot Watt University) and is a Chartered Member of the Landscape Institute with over 20 years’ experience in private practice. His interests include historic and designed landscapes, design and the environment. He is a Civic Trust Awards assessor, GIA Awards judge and West Dunbartonshire Council design panel member. He volunteers with Friends of the River Kelvin (FORK). He has also been a HLF PfP monitor, and a RHS Grow-wild mentor. He is a founding member of Sco.Mo which was established to reveal and celebrate Modernist landscape architecture in Scotland.

Robert Luther, Trustee and Hon. Treasurer SGLH

Robert Luther

Trustee and Hon. Treasurer GHSS 2013 – 2015 and Trustee, Secretary and Hon. Treasurer SGLH 2015 – present


Having spent his entire career abroad, Bob felt that it was time to come home. His first job was as a Russian linguist and his last as Director of Administration in the WTO. He finds working with the SGLH team enormously stimulating.


Sarah Barron, Trustee SGLH

Sarah Barron

Trustee SGLH
2015 – present

Sarah Barron is a Town Planner and Chartered Landscape Architect, and works as a consultant with a large architectural practice based in Edinburgh. Her work primarily includes urban design, regeneration projects, master planning and historic landscapes for public agencies, Local Authorities and private client companies across Scotland. She is a District Organiser and Trustee of Scotland’s Gardens and is a keen gardener and beekeeper.
Marilyn Brown, Trustee SGLH

Marilyn Brown

Trustee SGLH
2017 – present

Marilyn Brown is a garden archaeologist and historian with a particular interest in Scottish gardens before 1750. She has now retired from the Royal Commission on the Ancient and Historical Monuments of Scotland (now HES) where for many years she was responsible for aerial survey. She is the author of Scotland’s Lost Gardens and many articles relating to early Scottish gardens.
Judy Riley, Trustee SGLH

Judy Riley

Trustee SGLH 2018 – present, Trustee GHSSCT 2013 – 2014, Chair GHSS 2014 – 2015, Chair SGLH 2015 – 2018

Judy is a Landscape Architect with a longstanding and lively interest in contemporary garden design and its roots in history. She has lived in East Lothian for over 30 years.
Hannah Tweedie, Trustee SGLH

Hannah Tweedie

Acting Vice-Chair
Trustee 2016 – present

Hannah is a heritage consultant, working for a national planning and development consultancy. She has over ten years experience working as an archaeological and heritage consultant, during which time she has developed a particular interest in garden and landscape history. Away from work Hannah leads Guide and Ranger units in Granton, and enjoys knitting and other craft activities.
Hannah Tweedie, Trustee SGLH

Dave Lockhart

Trustee 2023 – present


Dave is a life-long gardener.  Having grown up on farm, he now lives in Philadelphia where he is involved with several historic preservation and horticultural organizations while tending his own small urban courtyard garden.  Professionally, he develops strategic initiatives in the healthcare sector.

Hannah Tweedie, Trustee SGLH

Fiona Gordon

Trustee 2023 – present


Fiona gained a Diploma in Garden History from the Royal Botanic Gardens Edinburgh in 2014. She consequently became involved with the ‘Glorious Gardens’ project as a volunteer, writing reports on designed landscapes in the Stirling area and East Lothian.