Hi bernsquared,
In addition, you might want to check out Novelty Comics.
http://digitalcomicmuseum.com/index.php?cid=203 The were published by Curtis, best known for the Saturday Evening Post. Your milage may vary, but Novelty tried to keep their stuff family friendly.
Target Comics is my favorite title from them.
One warning about Captain Marvel. In the early days Billy Batson had an African-American valet named Steamboat. By today's standards the character is very bad. Fortunately he did not appear all that often. He pretty much disappeared by 1945.
There are funny animal books from a number of other publishers on DCM, as well.
While DCM does not have any Disney material, you might see if your son likes the TV series
Duck Tales. My kids & I loved the series. My daughter, now 35, still enjoys watching. She owns all the DVD's.
Glad to have you aboard.
Bob Kennedy