�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon (8)
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Don Nicoll, April 15, 2004
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Don Nicoll, January 27, 2003
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Don Nicoll, May 1, 2002
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Don Nicoll, November 13, 2003
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Don Nicoll, November 29, 2001
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Don Nicoll, October 23, 2003
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Don Nicoll, September 16, 2002
�?�?�?�?�?�?�?�?�?�?�?�?�? �?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�?�? Billings, Leon, interviewed by Henry Sirgo, July 9, 1998