Andrew Gibson, born and educated in Scotland, began work for the NP on main line construction in Oregon, about west of Portland, as a clerk for Mr. O. Phil, Assistant Engineer, about July 1, 1883, and continued in the same position until the party was disbanded, about the end of October. Was leveler for Colin Mcintosh, assistant engineer on Kalama Inclines during January 1884. Went to work as a "bush hook dude" with William H. Kennedy on Cascade Division Surveys on April 27, 1884, starting at South Prairie and working east. Promoted to rodman about the beginning of June and to leveler about the middle of August, when the location of the from South Prairie to Eagle Gorge was completed. Gibson went on to work for engineers William T. Chalk, John Quincy Barlow, J.Q. Jamieson, and Herbert S. Huson, literally all over the Stampede Pass line. Gibson ran the level and took topography for the switch back, worked on the final location of the tunnel line, crossings of the Yakima River in the Yakima Canyon. Finally, he was made an assistant engineer himself, overseeing the lining of the tunnel as well as filling the numerous temporary trestles built in the haste to finish the line on time. It is primarily through his diligent work that detailed first hand accounts of the work are available. Gibson went on to oversee the NP's building on the Palouse, the giant west end tie plant at Paradise, Montana, finally becoming the Chief Engineer in charge of maintenance of way in Saint Paul. He started out very modestly, clearing brush from what would become the Main Street of the Northwest.