Catherine Wood, another exhibition curator, said: "I've been frustrated by the focus on the making of money in relation to the exhibition.
Mr. Gwynne, exhibition curator and a landscape architect, has already won an award for its restoration design.
Natter continues to be active as an exhibition curator in Europe, the USA and Japan.
Jean-François Chevrier is an art historian, art critic and exhibition curator.
The work is intended to "undermine the convention of seeing", according to the exhibition curator, Laurence Sillars.
He has also worked extensively as an architectural conservation consultant and exhibition curator.
Marina Alandra Vaizey is a broadcaster, exhibition curator and journalist.
Nothing of what they talked about is recorded, said Sue Ann Prince, the exhibition curator, "but my guess is they had a good time together."
In the interim Yitzchak Mais, exhibition curator, served as director; he has since returned to Israel.
In 1977 he became a founder, exhibition curator, and advisor at the Side Gallery, Newcastle, and worked as its director for 18 months.