Well Pat, you didn't give us much information to work with. I couldn't find Dudley Maines' name in any Pend Oreille County (WA) indexes, but I did find Dudley B. Maines intwo neighboring Idaho counties.
Source: WWI Draft Registry, 1917-18: Maines, Dudley Burt, born 10 March 1880
CENSUS INDEX: 1920 Spirit Lk, Kootenai Co, ID Maines, Dudley B., born 1883 Wisc., spouse Bessie
CENSUS INDEX: 1930 Bonner Co, ID Maines, Bert, b. 1882, sp. Bessie M.
IDAHO STATE DEATH INDEX: Maines, Dudley Burt, 1942 Bonner County