Here is a set of photos from the Hotel's 1st anniversary which I am assuming would be August of 1957. The Disneyland Hotel actually opened on October 5, 1955 but its official grand opening was celebrated on August 25, 1956. These photos depict the Wrather family celebrating poolside with a giant, multi-layered cake with "1st Anniversary Disneyland Hotel" decorated on the side of the individual layers. Some interesting facts about these pictures which I will go over in further detail a bit later.
---------- Post added 03-05-2012 at 02:48 PM ----------
The photos above also include Mr. Sherman Harris (and family). Sherm was the Hotel's very first General Manager.