Ole Erickson (Urness) born 1897 WW1 veteran and?

Dear Listers, I have for many many years been struggling with the destiny of this young man from the Urness farm in Hafslo: Ole Erikson, born in Hafslo May 13, 1897, son of «husmann» Erik Hansson Urness (1846-1911) and Margretha Tollefsdotter (Olson) Legreid (1864-1960), emigrated in 1914 to Louisburg, Lac qui parle Co., MN (where his brother John Erickson lived at the time), but in 1917 he joined the Armed Forces! The US Veterans Administration Master Index shows: Name: Ole C Erickson Record Type: Military Service Birth Date: 16 May 1897 Military Date: 4 Aug 1919 Military Place: Leavenworth, Kansas Here he shows up as Ole C. Erickson in the 1920 census as a Army laborer at Jefferson Barracks, St. Louis, MO - «married»: https://www.ancestry.com/imageviewer/collections/6061/images/4313213-01118?usePUB=true&_phsrc=Nzx25129&_phstart=successSource&usePUBJs=true&pId=58107055 Then there are TWO applications for social security, and by then he had «changed» his birthplace to Louisburg, MN: Name: Ole Erickson Gender: Male Race: White Birth Date: 16 May 1897 Birth Place: Louisburg, Minnesota Father: John Erickson Mother: Margaret Olson SSN: 567050722 (issued California) Notes: Jun 1937: Name listed as OLE ERICKSON Name: Ole C Erickson Gender: Male Race: White Birth Date: 5 May 1897 Birth Place: Louisburg, Minnesota Father: Hans Erickson Mother: Margret T Olsen SSN: 542122719 (issued Oregon) Notes: Dec 1938: Name listed as OLE C ERICKSON At the time of WW2 draft he had an address in Seattle, WA and an employer in San Francisco, CA: https://www.ancestry.com/imageviewer/collections/2238/images/44045_04_00009-04414?treeid=&personid=&hintid=&queryId=7e74a656e6ce41d9c2a2add73bef5a1b&usePUB=true&_phsrc=Nzx25123&_phstart=successSource&usePUBJs=true&_ga=2.268608753.1621079734.1618435785-390650824.1612707015&pId=36899453 The last time his family in Norway ever heard from or about him, was at the time he joined the army in 1917, and they have always been wondering what happened to him! They even had the Salvation Army search for him! Many people would be very happy to learn what became of Ole Erickson, and I thank you all very much in advance for any suggestions! Very sincerely yours,