I found this photo at My Link page Yesteryear Depot.Com, located to the right of Your computer screen.

40 years ago next month on the date of May 1st, 1971, Amtrak began operations.
This goverment agency wich would assume operation of America's National passenger train services, was signed in to law in the year 1970, by the late United States President Richard M. Nixon.

Prior to that, America's railroads had operated their own passenger train services. Passenger train travel had began to decline during the mid to late 1950's, as many Americans began to travel by commercial airlines to save time. In the upcoming years, many railroads would gradually "Downgrade" equipment and schedules on passenger trains, and sometimes "Eliminate" them all together. Some of these were on a case by case cost cutting measure.

Seen here in July of 1966, is a passenger train from the St. Louis & San Francisco Railroad aka "Frisco", pulling in to the passenger train station at Seymour Missouri.
The Frisco would exit the passenger train business by 1967.