I went to the 1901 Census to lookk for birthdates and looked to the son , Rader Carlson" and the census said 12/14/1899. Using this information and the fact that the census said he was born in the USA, I used the Social Security Death Index and found this man
REIDER CARLSON 14 Dec 1897 Aug 1975 99157 (Northport, Stevens, WA) (none specified) 539-10-7642 Washington
I would bet the farm that this is your relative !!