The complete film can be found at: http://www.archive.org/details/why_not_live
Excerpt From "The Plow That Broke The Plains": http://www.archive.org/details/PlowThatBrokethePlains1
This is a clip from the classic documentary "The City" showing an old time blacksmith at work at his forge and anvil.
"Cripple Creek Barroom Scene" was the first filmed western with a plot (be it ever so thin). This is the full frame format offered by the Library of Congress, complete with visible sprocket holes on the right side.
The complete film of "Wheels Of Progress" can be found at: http://www.archive.org/details/Wheelsof1927
Testing the result of massive underground explosions by the U.S. Atomic Energy Commission during Operation Dugout in 1960.
The Library of Congress, Motion Picture, Broadcasting, and Recorded Sound Division Rights information here: http://memory.loc.gov/ammem/papr/west/westres.html http://www.loc.gov/homepage/legal.html
Excerpt From: "To The Shores Of Iwo Jima" (1945) http://www.archive.org/details/iwojima
"Let the word go forth...,etc." Much more PD stock footage of JFK can be found in the newsreel section of the Internet Archive: http://www.archive.org/details/universal_newsreels