Jack Swigert with Jim Lovell and Fred Haise

This photograph, of the Apollo 13 crew, was taken on April 10, 1970 - the day before launch.  Two days earlier, Jack Swigert had replaced Ken Mattingly as the mission's Command Module Pilot.

Pictured, from left to right, are:  Fred Haise, Jack Swigert and Jim Lovell.

Click on the image for a better view.

Credits

Image online, courtesy NASA.