June 13 Sunday – 70 miles south of Memphis at about 6 A.M., the steamboat Pennsylvania’s boilers exploded, severely injuring Henry Clemens. Henry was blown free of the ship, but swam back to help rescue passengers. Either Henry did not realize the extent of his own injuries, or was scalded in his attempts to help. About 150 people were killed, including pilot William Brown. Klinefelter helped with the rescue and received only minor injuries. Henry was taken aboard the Kate Frisbee to Memphis, some sixty miles up river from the disaster [MTL 1: 80n1].