Indexed from a scan at The Digital Comics Museum.
Indicia states "All Li'l Abner characters used in LI'L ABNER JOINS THE NAVY have been prepared especially by Al Capp. The Al Capp characters are copyrighted, 1950, by United Features Syndicate,Inc., New York City. Trade Marks Reg. U. S. Pat. Off. Printed in the U.S.A."
Captain F.B.C. Martin was director of the recruiting division of the U.S. Navy.
Per an interview with R. C. Harvey; Vic Herman says that he drew himself as Drawin'-Board McEasel.
Herman's art is about 26 pages of the story.
The art by Al Capp may be repurposed from previous work. For instance part of the first page is taken from the cover of Li'l Abner Comics (Harvey, 1947 series) #62.