Negatives 1-12 originally in binder #60, entitled "Scientists BS" (WU 174 #4) ; negatives 13-18 orginally in binder #50, entitled "Robert Lawrence / Ed Dwight" (WU 115 #5) ; negatives 19-26 originally in binder #67, entitled "Chas. Bolden / Fred Gregory" (WU 124 #1) ; negatives 27-30 originally in binder #59, entitled "Ron McNair" (WU 174 #5) ; and negative 31 originally in binder #38, entitled "Guy Bluford" (WU 89 #4).