Apollo 13 prime crewmembers during water egress training

S70-24014 (17 Jan. 1970) --- The three prime crewmen of the Apollo 13 lunar landing mission stand by to participate in water egress training in a water tank in Building 260 at the Manned Spacecraft Center. They were (left to right) astronauts James A. Lovell Jr., commander; Thomas K. Mattingly II, command module pilot; and Fred W. Haise Jr., lunar module pilot.