One of the heroes of Apollo 13.As most will know, Ken was involved closely with "Steely Eyed Missile Man" John Aaron in establishing a power up sequence for the CSM after it had been shut down. It wasn't quite like the way they depicted it in the Ron Howard movie - most of the sequence was worked out using slide rules and hand written diagrams and notes on graph paper, but its a fascinating story nonetheless, as told by John Aaron in his interview for the NASA Oral History.https://historycollection.jsc.nasa.gov/JSCHistoryPortal/history/oral_histories/AaronJW/AaronJW_1-26-00.htm