Everything from “DA” to the end appears to be in different handwriting, but establishing the intent isn’t a slam-dunk. It might have been an annotation added innocently by the owner of the yearbook (or someone else) to identify the signer and occasion. Hence the misunderstanding of Moore’s job title at the time, and the misspelling of the restaurant name. But I will say I’m mystified by the grandfatherly tone being used by a guy in his early thirties. That points to forgery of the whole.
Establishing intent is easier given that the obviously added last name of Moore is a very bad attempt to forge the script Moore uses to write his name
This is not some innocent annotation to memorialize who wrote the message, it’s an outright attempt to forge Moore’s signature by duplicating public examples of his signature found on court documents
Nothing at all innocent or legit