Marten hasn't been seen or heard from since August 10, 2004

Wayne was last seen on October 8, 1985

Leslie was last seen on November 8, 2000

Dexter has not been seen by his family since April 29, 2004

Anne was last seen on September 13, 2008

Ozzie was last seen on October 19, 1969

Maxwell was last seen on May 1, 2012

Jonas was last seen on August15, 1977