Who We Are

B Reactor Museum Association is an all-volunteer association of individuals and groups originally formed to preserve the historic B Reactor on the Hanford Nuclear Site in southeastern Washington State as a public museum. That goal has been achieved with formation of the Manhattan Project National Historical Park, which includes B Reactor and other historical facilities at Hanford, as well as at Los Alamos, New Mexico, and Oak Ridge, Tennessee.

We are proud to be partnering with the National Park Service and Department of Energy as the two agencies work to manage and grow the new National Park at Hanford.

We invite you to join us.

BRMA goals

  • Restore the reactor building and contents to reflect its appearance during operation.
  • Add exhibits that reflect the history of the Hanford Nuclear Site.
  • Provide public access to B Reactor, including road access from Highway 240.
  • Educate the public as to the historical and technological significance of B Reactor.
  • Promote other attractions in the area to increase visitors to B Reactor.

Officers and Chairpersons 2018

Office Name
President John Fox
Vice President Hank Kosmata
Secretary Gene Weisskopf
Treasurer Del Ballard
Government/Community Relations Maynard Plahuta
History/Archives Burt Pierard
Membership Gary Petersen
Products/Sales Rick Bond
Communications Robert Franklin
Interpretive Projects Gary Busselman

Past Presidents

Name Date
Tom Bearden 1990 – Sep. 1991
Donald Sandberg Oct. 1991 – 1992
Frances Berting 1993 – mid-1994
Gerald Woodcock mid-1994 – 1997
Lyle Wilhelmi 1998 – 1999
Gene Weisskopf 2000 – Mar. 2002
Madeleine Brown Apr.-Dec. 2002
Del Ballard 2003 – 2004
Michele Gerber 2005
Hank Kosmata 2006 – 2008
Maynard Plahuta 2009 – 2016
John Fox 2017 – 2018