Here are some less common photographs of Murray Rothbard along with some other paragons of libertarianism. If anyone has higher resolution versions, please let us know.
Ron Paul, Henry Hazlitt, Murray Rothbard, Lew Rockwell
Burt Blumert, Lew Rockwell, David Gordon, Murray N. Rothbard
Hans Hoppe, Murray Rothbard
Murray Rothbard, Jack Criss
Murray Rothbard, Lew Rockwell
Murray Rothbard, Henry Hazlitt, Ludwig von Mises
Ludwig M. Lachmann, Friedrich von Hayek, Walter Block, Murray Rothbard
Murray Rothbard, unknown, Ron Paul, unknown
Joey Rothbard and Murray Rothbard
Murray Rothbard and Joey Rothbard
Murray Rothbard and his parents
Murray Rothbard in a stockade
Roger Garrison and Murray Rothbard
Howie Rich and Murray Rothbard
Sadowsky and Murray Rothbard on April 4th, 1967
Tom Woods, Murray Rothbard
The following photo does not include Murray Rothbard, but is a nice addition to this little collection.
Unknown, Ludwig von Mises, Leonard Read, Henry Hazlitt
Rothbard.com 
unknown????
That guy, standing right next to Hayek is Ludwig M. Lachmann
Thank you, Mateus!