We had this at a Ladies Rally in Emo, Ontario in June, 1981.  It is a fun meal to serve, good to serve after you've just done a major grocery shopping since there are quite a few ingredients.
I don't know how many this serves, but would guess at least a dozen. When this is served the ingredients are served in order.  Begin with the rice, then the chicken and gravy, followed by the remaining ingredients in the order given.