"They say it's your birthday" - writers born on March 31

René Descartes  (1596) 
Edward FitzGerald  (1809)
John Fowles  (1926) 
Nikolai Gogol  (1809)
John Jakes  (1932)
Andrew Lang  (1844) 
William Lederer Jr.  (1912)
Andrew Marvell  (1621) 
Octavio Paz  (1914)
Marge Piercy (1936)
Judith Rossner  (1935)