This is a Message Board Post that is gatewayed to this mailing list. Classification: Query Message Board URL: http://boards.ancestry.com/mbexec/msg/rw/INB.2ACE/1449.2 Message Board Post: I have found a bit more information which leads me to believe that they were known by the Detonancour spelling of their surname. MONTANA DEATH INDEX 1907-1953: DETONANCOUR, Donald Died: 20 Aug 1934 at 8 years of age Index #: MslaC 3873 ("MslaC" indicates Missoula County, MT) SOCIAL SECURITY DEATH INDEX: DETONANCOUR, Olene Born: 23 May 1904 Died: __ May, 1979 in Idaho Falls, Bonneville County, Idaho SS#: 517-18-9465 (Issued in Montana before 1951) DETONANCOUR, Boyd L. Born: 10 Apr 1925 Died: 18 Jan 2004 in Olympia, Thurston County, Washington #702-01-6806 (Railroad) I think the above dates fit with your information. Please note that I am not related to, nor do I have any personal knowledge of this family