Sept 18, 1888 — Built by Pullman for SP subsidiary Northern Ry as coach #1005 with a price of $975.
1891 - Renumbered SP #1804 in system-wide renumbering.
Nov 30, 1909 — Rebuilt as SP division superintendent car #109 "Shasta", received 6-wheel wood beam trucks. Stationed in Dunsmuir.
May 16, 1918 — SP #109 Shasta received 4-wheel steel trucks from combine #3165 when that car was converted into an MofW boarding car.
July 1932 — SP #109 Shasta retired as a business car, put into storage.
March 16, 1937 — SP #109 Shasta converted into SP MW #18 as a foreman boarding car.
July 1957 — SP MW #18 retired.
Nov 14, 1957 — Sold to Henry Raub. Stored for many years in Bakersfield, and later at Orange Empire Railway Museum.
June 1977 — CSRM purchased SP #109 Shasta for $5,000 through Sacramento Trust for Historic Preservation using a 1776-1976 American Revolution Bicentennial Grant. Trucked to CSRM. Car placed on 4-wheel wood beam trucks from Sierra Ry baggage-mail car #8, and stored on disconnected track outside the Unit Shop.
1977 - 2000 — SP #109 sat outside the Museum's Restoration Shop. By the mid 1990s the car's roof was already failing and leaking. The Shasta has suffered both from weather and occasional vandalism and "transient residence".
2000 — SP #109 Shasta moved to inside storage in former SP Erecting Shop at CSRM.
2016 — On April 28th , SP #109 left its longtime home in the backshop of the California State Railroad Museum and was loaded onto a lowboy truck which then took it north on I-5. After a layover in Redding, it returned to its long time home of Siskiyou County, arriving at the Black Butte Center for Railroad Culture on the morning of the 29th. On the morning of the 30th the trucks for the car arrived and then the trucks and car were unloaded and placed on a newly built section of track.