The USS FDR CV-42 was the 2nd of the Midway Class, the "least-modified" of the 3-ship class. Several others were cancelled at the end of WW II.

You should be able to find gobs of links to the class and CV-42's history. There may also be some cruise books out there. Try Steelnavy, a ship modelers' forum, for links and info.

Best of fortune.