Chicago, Burlington and Quincy 5632 was an O-5B class 4-8-4 “Northern” built in the CB&Q's shops in August 1940.

5632 was disassembled for an unfinished overhaul, and was subsequently sold to Chicago area railfan Richard Jensen.

The locomotive was moved inside a Chicago and Western Indiana Railroad (C&WI) roundhouse for restoration.

Upon entry, the locomotive derailed on a curve, resulting in its scrapping in 1972 and a subsequent lawsuit between Jensen and the C&WI.

5632 was among several O-5 class locomotives that were reassigned to haul freight extras in the CB&Q's Lincoln-Omaha divisions in Nebraska and Iowa.

5632, were removed from storage to pull additional freight trains in the Lincoln-Omaha divisions, in response to some diesel locomotives being transferred to serve that month's Nebraska wheat harvest.

[8] Beginning on June 7, 1959, the locomotive pulled a multi-day fantrip sponsored by the Illinois Railroad Club, with the train running from Chicago to Lincoln, and fellow O-5B No.

[8] Throughout the 1950s, twenty-one individual steam locomotives were used to pull the CB&Q's excursion trips, but by 1960, only two of them were still operational; No.

[11] By the beginning of 1962, the CB&Q's passenger department proposed to create a new approach to market the railroad's steam program by promoting discount ticket sales to non-railfans.

[9] To that end, the railroad created a new set of excursion runs, called the Steam "Choo-Choo", which would carry and educate school students from various communities.

Following the success of the 1962 excursion trips, the CB&Q hosted additional runs for the Steam Choo-Choo events and the Illinois Railroad Club during the 1963 season.

[12][13][14] The locomotive pulled the excursion over the Colorado and Southern (C&S) mainline in late August and early September.

[17] The May 23 trip consisted of twenty-two bilevel cars and 3,500 passengers—the trip broke the record of the highest number of people carried in a single train, but the record was broken by other trains in later years, including one on the Rhaetian Railway in Switzerland.

5632 retained its brass livery for the 50th anniversary of the opening of the Kansas City Union Station on October 31 and November 1.

[19] As a result of public demand to keep the steam program going, Harry Murphy ordered for a class 3 overhaul to take place on No.

[19] A minimum of fourteen workers were required for the overhaul to be completed, but the CB&Q struggled to hire enough qualified personnel to work on the locomotive, since remaining veteran steam mechanics have retired and passed away.

[23] On July 1, 1965, Harry Murphy retired from his position as president of the CB&Q, and he later died on March 4, 1967, following a heart attack at his home in Aurora.

[20][19][24] Murphy's successor, Louis W. Menk, had no interest in hosting steam excursion trains.

While exploring ways to reduce operating costs for the CB&Q, Menk ordered for the steam program to be shut down by August 1, 1966, and for No.

[19][21] Railroad Club of Chicago member Richard "Dick" Jensen negotiated with Menk and other CB&Q management to acquire No.

4963, and his collection of parts off the property; it involved making plans to relocate them to either the Illinois Railway Museum (IRM) or the Chicago, West Pullman and Southern Railroad (CWPS), and he purchased some empty freight cars second-hand to load the parts and tools.

[23][29] By the end of August, Jensen had his locomotives and parts removed from the building and coupled together in one consist for shipment.

[23] The C&WI subsequently moved the consist themselves at 5 miles per hour (8.0 km/h) to their 83rd street yard to begin demolishing their roundhouse, and Dowdy ordered for all of Jensen’s equipment to be disposed of in one sale.

5632 within the yard, but they had no easy way to perform the task of re-railing the locomotive, so they dismantled it and shipped its remains to a nearby facility to be smelted down.