Columbia subject headings:
Civil engineers--United States--Correspondence.
Poets, American--19th century--Correspondence.
Whitman, Thomas Jefferson, 1833-1890.
Whitman, Walt, 1819-1892--Correspondence.
Harvard subject headings:
Civil engineers--United States--Correspondence.
Poets, American--19th century--Correspondence
Whitman, Thomas Jefferson, 1833-1890.
Whitman, Walt, 1819-1892--Correspondence.
Princeton subject headings:
Civil engineers--United States--Correspondence.
Poets, American--19th century--Correspondence.
Whitman, Thomas Jefferson, 1833-1890.
Whitman, Walt, 1819-1892--Correspondence.