David Hatch

Sir David Edwin Hatch, (7 May 1939 – 13 June 2007) was an English broadcaster, involved in production and management at BBC Radio where he held many executive positions, including Head of Light Entertainment (Radio), Controller of BBC Radio 2 and BBC Radio 4 and later managing director of BBC Radio. Provided by Wikipedia

1
by Hatch, David A.
Published 2014
Center for Cryptologic History, NSA

2
by Hatch, David, Benson, Robert
Published 2000
Center for Cryptologic History, NSA