In 1975 Henderson exhibited for Stowells Trophy at the Royal Academy. Two years later, in 1977, Henderson became Artist in Residence at Kingston University. During the mid-1980s Henderson's work became recognised by private and public collectors, including
Bono, leader of the Irish rock band
U2. During this period Henderson sold his first work to the National Art Collection (1986).
Cuilcagh Under A Renaissance Sky was purchased for
Fermanagh County Museum with a grant from the
Arts Council of Northern Ireland who have continued to support his work into the new millennium acquiring "If Hobbema had Seen Ireland" (1989) in 2004 via
Art Fund with support from the
Esmée Fairbairn Foundation. His work is exhibited by
Arts Council England Henderson began "Palinurus in Soho" in 1991, a series of 12 paintings depicting night time rooftop scenes across London, painted from an attic in Kingly Street. Exhibited at the Anna Bornholt Gallery in 1992, ten of the series were acquired by a single private collector. Around 2000 Henderson became more influenced by Greek and Irish symbolism, in particular
White Island, the
Book of Kells and
Sheela na gig, reflected in much of the art produced from this time onward. In 2001 Henderson created a set of enamel Manuscripts for the William Jefferson
Clinton Centre in Enniskillen. Henderson was interested in enamelling because of the possibilities that it offered to him as a colourist and in the behaviour of gestural mark-making. The process was made possible when he was introduced to Andrew Morley, the authority on
enamel sign making. Henderson's work is held in the private collection of the entrepreneur Vincent Ferguson, owner of
Fitzwilton Plc and
Independent News & Media PLC. His work held in the
Smurfit Art Collection of Smurfit Kappa Group. Exhibitions & Awards for Henderson's work include;
The Royal Academy,
Stowells Trophy-1975, Institute of Contemporary Arts, London
-New Contemporaries, Artscribe Prize-1978, Whitworth Gallery, Manchester, Northern Young Contemporaries,
Semper Idem, Tandava Stasis-1979, Round House Gallery, London, A Sense of Ireland-1980, Fenderesky, Belfast
-"Paintings Across a Border"[solo]-1986, Arts Council Gallery, Belfast
-"Present Memories"-1987, Hendricks Gallery-Dublin-
Present Memories-1987, Art Advice/Hendriks International Gallery-New York-
"New Art from Ireland" & "Landscapes from Ireland"-1988, Atlantis Gallery, London
-"Hill of History"-1994 == Description of Work ==