At first I wasn't sure if October 6 said Dinner with the "Mayors" or Dinner with the "Moyars", but after exiting the vault and being able to crouch, looking closer I could tell that the writer of the memo has a pronounced difference between their "a" and their "o" (see October 4's memo, the second word, "handy"), concluding that the entry is certainly "Moyers".
However, I can't find a single reference to them at all on the internet, nor have I found any relevant terminal entries so far (though there are a lot to go through). Do they even exist beyond this scribble?
Note: I started looking into this because the Sole Survivor's neighbors, with whom the SS may or may not had friendships, are named, have wiki pages, and some even make appearances later in the game. In contrast, the Moyers, despite having a rather apparent connection to the SS, essentially seem to not exist. Who are they?