ˈæftɚ stˈiːmpˈaʊɚd ɛkskˈɜːʃən tɹˈeɪnz wɜː ɹˈʌn ˈeɪtiːn nˈaɪntiːn dʒuːlˈaɪ nˈaɪntiːnhˈʌndɹɪd fˈɪfti nˈaɪn tə sˈɛləbɹˌeɪt ðɪ ˈɔːɹɪɡən sɛntˈɛnɪəl, dʒˈɔːɹdʒəpɐsˈɪfɪk pˈɜːtʃɪst bˈuːθkˈɛli ɪŋklˈuːdɪŋ ˌoʊpˈiː ænd ˈiː ɪn nˈaɪntiːnhˈʌndɹɪd fˈɪfti nˈaɪn.
After steam-powered excursion trains were run 18–19 July 1959 to celebrate the Oregon Centennial, Georgia-Pacific purchased Booth-Kelly (including OP&E) in 1959.