Portland Electric Power Company

found: Annual report to the stockholders, 1923:t.p. (Portland Electric Power Company)

found: Annual report to the stockholders, 1929:t.p. (Pacific Northwest Public Service Company; formerly Portland Electric Power Company)

found: Electrifying Eden, c1990:p. 108 (Portland Electric Power Company; PEPCO) p. 117 (in 1924 the name changed to Portland Electric Power Company) p. 146 (in 1930 name changed to Pacific Northwest Public Service Company) p. 154 (in 1933 name changed back to Portland Electric Power Company) p. 219 (Portland Electric Power Company dissolved in 1948)

notfound: Annual report to the stockholders of the Portland Railway Light and Power Company for the year ending ..., 1914: p. 4 (Portland, Or.)