There isn’t much history that I’m able to find about Hamilton, Oregon. Oregon Geographic Names states that the town was named for J.H. Hamilton, a pioneer stockman who first settled here in 1874 and lived there until his death in 1909. It also mentioned that a lot of settlers visited the area to race horses.

Old Barn1 1024x768 Ghost Town of Hamilton, Oregon ghost town buildings abandoned Old House 1024x768 Ghost Town of Hamilton, Oregon ghost town buildings abandoned
Is this J.H. Hamilton’s house?

Farm House1 1024x768 Ghost Town of Hamilton, Oregon ghost town buildings abandoned Hamilton Farm 1024x768 Ghost Town of Hamilton, Oregon ghost town buildings abandoned Hamilton Homestead 1024x768 Ghost Town of Hamilton, Oregon ghost town buildings abandoned Hamilton Homestead2 1024x768 Ghost Town of Hamilton, Oregon ghost town buildings abandoned
A homestead just past town. A few horses were in the Corral, but the house itself was obviously abandoned and disused.