The Washington Post

Denney J. Keys, NASA engineer

Denney J. Keys, 54, who had been a senior technical fellow for power systems engineering at NASA, died of cancer Dec. 30 at his home in Mitchellville.

His wife, Mary Ellen Keys, confirmed the death.

Mr. Keys joined NASA in 1990 as a power systems engineer, and he worked there until his death. He received the NASA Medal for Exceptional Service in 2005 and the NASA Exceptional Engineering Achievement Medal in 2011.

Denney Jerome Keys was born in Las Cruces, N.M. He graduated in 1980 from the University of Colorado at Boulder, where he also received a master’s degree in mechanical engineering in 1986.

Survivors include his wife of 30 years, Mary Ellen Hynes “Mimi” Keys of Mitchellville; his mother, Helen M. Keys, of Cinnaminson, N.J.; two sisters; and two brothers.

— Bart Barnes

Most Read

To keep reading, please enter your email address.

You’ll also receive from The Washington Post:
  • A free 6-week digital subscription
  • Our daily newsletter in your inbox

Please enter a valid email address

I have read and agree to the Terms of Service and Privacy Policy.

Please indicate agreement.

Thank you.

Check your inbox. We’ve sent an email explaining how to set up an account and activate your free digital subscription.