Frank Beanland (1936-) was born in Bridlington, Yorkshire. A bold, colourful abstract artist, he attended Hull College of Art 1952-57, then Slade School of Fine Art 1959-61. A Boise travelling scholarship took him to Stockholm 1961-2.

Beanland began showing in 1960 at Young Contemporaries then in mixed shows at Drian Galleries, London Group and Gimpel Fils. He settled for a while in the 1960s in Cornwall where he produced much of his best work.

Solo exhibitions include Smiths Galleries One in 1960 and Belgrave Galleries 1999. His work is held by a number of public collections including Leverhulme Trust and Slade School and the Lodz Museum in Poland.

Denis Bowen (1921-2006) was born in Kimberly, South Africa of Welsh parentage but left for England as a child. He studied at the Royal College of Art from 1946-50, where teachers included Rodrigo Moynihan, John Minton and Carel Weight.

Bowen soon made his name as a leading experimental artist; in 1952 with other members of the ICA he founded the Free Painters’ Group and from 1956-66 he directed the New Vision Centre, initially with Frank Avray Wilson and Halima Nalecz. This became the focal point in London for work of advanced artists from Europe and elsewhere.

From 1969-1972 he taught at Victoria University, British Colombia and in later life he was a leading light in Celtic Vision which he co-founded in 1982.

Bowen showed widely, at the Redfern Gallery and elsewhere, and major late career retrospectives included Belgrave Gallery, London in 2001, Blyth Gallery, Imperial College in 2002 and Rome Museum of Modern Art in 2006.

His work is held by the Tate Gallery, Victoria and Albert Museum, British Museum and many regional collections in the UK. It is also in public collections in Australia, USA, Canada, Italy, Poland, Macedonia, Israel and elsewhere.

Terence Donovan (1936-1996) was born in the East End of London and studied photography at the London College of Art and Photography. He sprang to fame in the late 1950s with portraits of film stars and through the 1960s was one of a handful of photographers who captured London during “the swinging ‘60s”.

He continued to take photographs throughout his life, including of Princess Diana and other society figures, but in his later years developed a love of painting. He exhibited vast abstracts to great acclaim at Albemarle Gallery in Mayfair in 1990.

Bryan Organ (1935-) was born in Leicester and studied at Loughborough College of Art 1952-5, then the Royal Academy Schools 1955-9. His first one-man show was at Leicester Museum and Art Gallery in 1959 but from 1967 he had a series of solo exhibitions at Redfern Gallery, London. He also had solo shows in New York, Cologne, Sao Paulo and Turin.

Organ became known as a fine wildlife artist and a notable portrait painter – his painting of Diana Princess of Wales, in particular, was highly regarded. His work is in many public collections in Britain and elsewhere, including the Tate Gallery, National Portrait Gallery and Whitworth Art Gallery Manchester.