. . . . . "Portland Power Plant" . . . "Portland" . . "Portland Company" . . . . . . . . . . . . . . . . "Portland Works" . . . . . . . . . . . . . . "Portland Company" . . . "Portland Branch Assembly Plant" . . "Portland Electric Power Company" . "The Portland Company" . . . . . . . . . . . . . . . "1846-11-10" . . . . . . . . . . . "Portland Stock Exchange" . "1846" . . . . . . . . . . . . . . . . .