A letter from the 18th of June, 1953, sees Jerry Siegel using a lawsuit between National Comics and Fawcett over the publication of Captain Marvel.
jerry siegel letters Archives
On the 17th of December, 1951, Jerry Siegel sent a letter to National Comics VP Jack Liebowitz containing Suprman grievances - and white powder.
This internal document from 1939 shows how the publisher confronted the first legal threat against Superman, from George Bernard Shaw.
The Superman newspaper strip's editor Hannah Baker also sent the following letter to Jerry Siegel on the 20th of April, 1939...
In 1936, co-publisher of All-American Publications, Maxwell Charles Gaines wrote to Jerry Siegel rejecting Superman., returning all meterials.