Carlotta Cammelli
Carlotta completed her MA in Stained Glass Conservation and Heritage Management at the University of York in 2020, supported by an Anna Plowden Trust bursary awarded in 2019. She also holds an MA in Art Gallery and Museum Studies from the University of Leeds.
She is currently undertaking a part‑time PhD at the University of Leeds, researching the introduction of stained glass windows in British synagogues between 1840 and 1914.
Carlotta works at Recclesia Stained Glass as Lead Stained Glass Conservator and Studio Supervisor, and also serves as Editorial and Technical Assistant for the CVMA online journal Vidimus. She has previously served on the ICON Stained Glass Group Committee, first as Secretary and later as Vice‑Chair.
Ali Wysopal
Ali completed her MSc in Historic Preservation at the University of Texas at Austin in 2021, followed by a post-graduate conservation fellowship at the Metropolitan Museum of Art focused on stained glass. She has since worked in private practice and in 2025 joined Barley Studio on a Kress Foundation Fellowship.
Adelheid Hansen
Adelheid completed a minor in Conservation and Restoration of Cultural Heritage at the University of Amsterdam in 2015, followed by a Graduate Diploma and MA in Conservation of Ceramics and Related Materials at West Dean College, graduated in 2017. She was the ICON stained glass intern at Barley Studio in 2022 and an intern in advanced glass conservation at the Corning Museum of Glass in 2018, for which she was awarded the Zibby Garnett Travel Fellowship.
Orla Perdue
Orla received a first-class MA in Stained Glass Conservation and Heritage Management at the University of York in 2023. Her focus was on lead research, public reception, and writing on the acid etching techniques of Irish artist Harry Clarke, for which she was also awarded the Nicholas Barker Dissertation Prize. Previously to this, she was awarded a first-class BA in Ancient History & Archaeology and English Literature from Trinity College Dublin.
Since January 2025 she has been working as a conservation assistant, (fledgeling!) glass designer, and social media manager for Rainbow Glass Studios in Scotland. This has fostered a great appreciation for new work as well as conservation and huge excitement to get more involved with ICON.
Robin Henderson
Robin Henderson is an early career stained-glass conservator, who is currently working at Auravisions, Saffron Walden. He graduated with distinction from the York MA in Stained Glass Conservation and Heritage Management in 2025, receiving the Nicholas Barker Prize for his dissertation on glass types developed for Arts and Crafts stained-glass, such as slab and antique. He is grateful to have been both an Anna Plowden Scholar and a Zibby Garnett Scholar.
Zoe Harrigan
Zoe Harrigan is Director of Rainbow Glass (East) based in Edinburgh. She has worked in stained glass conservation since graduating with the MA in Stained Glass Conservation and Heritage Management in 2015 from the University of York. She is re-joining the ICON Stained Glass Group Committee, having been a member of the committee from 2018-21.
Kristien Hanselaer
Kristien completed a Master’s degree in Conservation and Restoration at the University of Antwerp in 2008, followed by an additional Master’s degree in Heritage Studies at the same university.
For the past ten years, she has been working as a project manager in the conservation and restoration of stained glass. In this role, she closely follows restoration projects, conducts research, and communicates with architects, government bodies, and other stakeholders. Her work is firmly rooted in practical, hands-on conservation practice.
Samantha Yates
Samantha Yates has just completed the MA in Stained Glass Conservation and Heritage Management at the University of York, with a professional placement at the York Glaziers Trust.
She continues to actively research the Leeds Victorian Stained Glass companies of William Pape, Kayll & Co, Kayll & Reed and Powell Bros of Leeds, which formed the focus of her dissertation.
Kiani Dwight
Kiani Dwight holds a Master’s degree in Stained Glass Conservation and Heritage Management from the University of York, graduating with distinction. Her graduate research examined the art-historical and conservation challenges of stained glass in tropical environments. Prior to her MA, she apprenticed at her grandfather’s Hawaiʻi-based studio, Joe Dwight’s Stained and Hot Glass Creations. Kiani further developed her professional training through two professional placements in Belgium, working at Atelier Mestdagh and under the mentorship of stained glass conservator Aletta Rambaut.
Molly Bee
Molly is a graduate of the University of the Arts London, where she studied Graphic Design and Creative Computing. Over the past two years, she has worked in stained glass studios across London, developing her practical skills and deepening her understanding of the craft. She is now set to begin her MA in Stained Glass Conservation and Heritage Management at the University of York.
Aurelia Fernandes
Aurelia Fernandes holds an MA in Stained Glass Conservation and Heritage Management from the University of York and is an alumna of the University of Mumbai. She is an Anna Plowden and Zibby Garnett scholar and was also the recipient of the Luigi and Laura Dallapiccola Grant in 2025.
Gordon Muir
Gordon is a graduate and post graduate alumni of Glasgow School of Art . After graduating, he painted and exhibited work for a couple of years, before working extensively in community arts projects for around ten years. More recently working as a signwriter, window display artist and illustrator.
Gordon is currently employed as an Historic Environment Scotland-Stained Glass Craft Fellow. Working with Rob Macinnes-Stained Glass in Glasgow, I have been involved with new commissions, and the conservation and restoration of historical glass.
Roberto Rosa ACR
Roberto, a principal at Serpentino Studio since 1988, is a Fellow of the Corning Museum of Glass, a member of the Corpus Vitrearum USA, a Fellow of the American Institute for Conservation (AIC) and Chair of the American Glass Guild Education Committee.
Zachary Green
Zachary Green, of Jersey City, began working in stained glass in 2001 and soon founded his own studio, the Princeton Stained Glass Company, where he focused on new works and restoration, concentrating on traditional glass painting techniques. In 2019 he became the owner of The Gil Studio, Inc in NYC which currently operates from its Union City, NJ facilities and continues its tradition of excellence in the conservation of historic windows and the design and fabrication of new works.
H. Thomas Küpper
I first became interested in stained glass in the late 1980s, when I established a small glazing studio in Cockermouth, Cumbria. In 1994, I began work at Lincoln Cathedral, where I spent 25 years as a stained-glass conservator, later becoming Head of Department.
During 2018 and 2019, I worked for Historic England as part of the Taylor Review Pilot, supporting churches across East Anglia with their repair and maintenance programmes. Since 2020, I have been employed at Peterborough Cathedral as Estates and Facilities Manager. I gained a Postgraduate Diploma in the Conservation of Historic Objects from De Montfort University, Leicester, in 2004, followed by a Master of Arts in the same subject in 2005.
I have been an ICON Accredited Conservator-Restorer since 2011, and in 2025 I completed my PhD at the University of Lincoln. My doctoral research, Stained Glass Windows Made by Women Amateurs in English Churches, 1830–1880, explored the overlooked contribution of women to nineteenth-century ecclesiastical stained glass.
I continue to be actively involved in the field of stained glass through membership of a number of advisory committees, supporting the conservation and understanding of historic stained glass.
Sue Humphries
Sue studied architectural stained glass at Swansea Between 1993 and 1997, and has been working in stained glass ever since then.
Sue and her set up Dan Humphries stained glass studios 10 years ago, focusing on conservation of historic stained glass.