This logo is likely too simple for U.S. copyright.
The Chicago & North Western Historical Society's "Minneapolis & St. Louis Railroad - A Capsule History" mentions "the repainting of the diesels and freight cars in the striking red and white scheme around 1956" and that the M&StL was bought by the Chicago & Northwestern in 1960. So this logo was first in use on train cars before 1960 in any case, and there is no evidence of copyright messages on train cars.
This logo image could be re-created using vector graphics as an SVG file. This has several advantages; see Commons:Media for cleanup for more information. If an SVG form of this image is available, please upload it and afterwards replace this template with {{vector version available|new image name}}.
It is recommended to name the SVG file “Minneapolis & St. Louis Peoria Gateway logo.svg”—then the template Vector version available (or Vva) does not need the new image name parameter.
This logo image was uploaded in the JPEG format even though it consists of non-photographic data. This information could be stored more efficiently or accurately in the PNG or SVG format. If possible, please upload a PNG or SVG version of this image without compression artifacts, derived from a non-JPEG source (or with existing artifacts removed). After doing so, please tag the JPEG version with {{Superseded|NewImage.ext}} and remove this tag. This tag should not be applied to photographs or scans. If this image is a diagram or other image suitable for vectorisation, please tag this image with {{Convert to SVG}} instead of {{BadJPEG}}. If not suitable for vectorisation, use {{Convert to PNG}}. For more information, see {{BadJPEG}}.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.