The Walt Whitman Archive has a 36-second recording taken from an old wax cylinder of what is thought to be Whitman himself reading four lines from his poem, America.

Listen to Walt Whitman reading America

Here’s the text of the poem:

America

Centre of equal daughters, equal sons,
All, all alike endear’d, grown, ungrown, young or old,
Strong, ample, fair, enduring, capable, rich,
Perennial with the Earth, with Freedom, Law and Love,
A grand, sane, towering, seated Mother,
Chair’d in the adamant of Time.