Susan Olsen aka Cindy Brady of the 1969-1974 Brady Bunch TV series announced on her Facebook page that he older brother Larry Olsen passed away on November 24, 2015. She said he had been ill for several years. The place of his passing was not mentioned nor can I find anything on the Internet.
OLSEN, Larry (Lawrence Joseph Olsen)
Born: 5/16/1938, Marshalltown, Iowa, U.S.A.
Died: 11/24/2015, U.S.A.
Larry Olsen's westerns - actor:
Lone Texas Ranger - 1945 (Payne)
Winchester '73 - 1950 (boy at rifle shoot)