Here's a link to the 1976 edition of the standard operating procedures for Disneyland's Pirates of the Caribbean.
My favorite Disney-geek reading is the old operating-procedure manuals for the rides. These docs are all one-of-a-kind Rube Goldberg machines, intended to be operated by large crews of semi-skilled, lightly trained individuals who spend 8-12 hours per day loading the richest children on Earth into modified threshing machines. Therefore, the manuals tend to be wonderfully lucid and down-to-earth, the Hemingway of documentation. Link (via The Disney Blog)
Update: Here's the Haunted Mansion manual from 1975 -- thanks, Tom! Cory