Bartleby
Bartleby.com: Henry Vaughan, the Retreat
Bartleby provides the full text for the following poems: "The Retreat", "Peace", "The Timber", and "Friends Departed".
English Verse
English Verse: Henry Vaughan (1621 1695)
Four poems by the Welsh poet, and a brief biographical sketch are offered here.
Other
Poems for the People: The Retreat by Henry Vaughan
This site provides the text of "The Retreat" by Henry Vaughan in its entirety.