Don Gonyea had a great segment recently on NPR in which he interviewed Shelly Fielman, a cameraman from NBC and member of the White House Press Corps, about his experiences. Fielman began covering American presidents in 1963 and hasn't stopped since. From the Lee Harvey Oswald shooting to the assassination attempt on Ronald Reagan to KKK rallies, Fielman has seen--and recorded--it all.
The interview is well worth listening to in its entirety. Fielman is a walking, breating, working, institution. Without people like Fielman, the rich history of the modern American presidency would not seem as rich.
(By the way, Fielman is holding the middle camera in the picture above in the aftermath of the 1981 assassination attempt on Reagan)