Arlington Cemetery
Arlington National Cemetery Website: Pierre Charles L'enfant
This site from The Arlington National Cemetery contains a biography of L'Enfant (1754-1852) and information about the L'Enfant Monument. You will also find quotes about him, as well as by him. This site also includes several pictures.
Houghton Mifflin Harcourt
Harcourt: Biographies: Pierre Charles L'enfant
A description of L'Enfant's service in the United States, including service in the Revolutionary War and planning the layout for the nation's capital. (In Spanish)