Richard Allen - abstract artist - died in 1999.
Abstract Poetry is: a fish swim or die FLOAT platform 9 in stationary bicycle worth, worthless error
John Charlton - artist - died in 1917.
John Petts - artist - died in 1991.
John Morgan - artist - died in 1885.
John Flower - artist - died in 1861.
Richard William Allen died in 1955.
Richard William Allen died in 1955.
Richard Coyne - artist - died in 1990.
Richard King - artist - died in 1974.
Richard Cook - artist - died in 1857.
Richard Short - artist - died in 1916.
Richard 'Pistol' Allen died on 2002-06-30.
A. A. Allen died on 1970-06-11.
He died, "from an extensive disease of the lungs".
acctually its die not died and i think was because of old age
See the link for 10 Richard Longs, hopefully one of them is the one you are asking about. If it is the artist Richard Long, he is still very much alive.
When did Increase Allen Lapham Die