Union Station in Hamilton was a dream that never materialized. City planners focused much of their attention on the railroads serving the city of 39,675 people in 1920. The plan proposed a Union Station to alleviate the inconvenience of two depots. Passengers who had to shuttle between the stations and residents whose travel was interrupted by stopped trains welcomed the idea. "The Union Station would be located in the block bounded by Fourth, Fifth, Sycamore and Charles streets, and front the present Fourth Ward Park," said Harland Bartholomew, the St. Louis city planner who prepared the 1920 document. "A union station located at this point," the plan said, "would do much to relieve the transportation difficulties of Hamilton inasmuch as it would permit the separation of freight and passenger traffic. It would further adapt itself to the grade crossing elimination program and would be advantageously located with respect to the future expansion of the business district."
Three railroads were involved: the Baltimore & Ohio B&O); the Cincinnati, Indianapolis & Western (CI&W); and the Pennsylvania (PRR or PCC&St.L). The B&O and CI&W shared the station on South Fifth Street while the PRR depot was on South Seventh Street. The two stations, the plan said, "are located about one half mile apart with no satisfactory streetcar service between them. The stations are no larger than necessary to accommodate their present traffic and in the course of a few years will prove wholly inadequate. "Aside from being a convenience to the public and a source of pride to the community," the proposal observed, "a central union station will prove of great value to the railroads in both the administration of their business and the operation of their trains." By the end of the 1920s decade, about 30 daily passengers trains stopped in the city.