Because he wanted to retire.
he retired in the 1960
Jean-Paul Mauric died on 1971-01-05.
Jean-Paul Mauric was born on 1933-06-17.
Richard Turnbull was born in 1960.
Richard Sjöberg died in 1960.
Richard Burchard was born in 1960.
Richard Felchlin died in 1960.
Richard Causey was born in 1960.
Richard Skyrme was born in 1960.
Richard Konwiarz died in 1960.
Richard Bagger was born in 1960.
Richard Livingstone died in 1960.