Lionel Corporation
When Lionel Corporation introduced their line of HO scale trains in 1958, many of the trains were produced by Athearn. Athearn also produced trains for the short-lived Cox Models brand of electric train sets in the 1970s. Many of these products were pre-existing items from the Athearn catalog repackaged with Cox branding. Freight cars packaged with train sets sold by Atlas Model Railroad Co. in the 1970s also came from Athearn.