EMD GP7u was built in 1951 (builder#15708) for the U.S. Army, #1838.  The Alaska Railroad acquired it in 1976 and numbered it 1838 (later #1801).  It was sold to General Metals (Anchorage, AK) in 1998, to BDLX in 1999, to Midwest Locomotive in 1999 an finally to the Missouri Central.