"They say it's your birthday" - writers born on April 13

Rae Armantrout  (1947) 
Samuel Beckett  (1906) 
Seamus Heaney  (1939)
Marguerite Henry  (1902) 
Thomas Jefferson  (1743)
Nella Larsen  (1891)
Jean-Marie Gustave Le Clézio  (1940) 
Eudora Welty  (1909)