Through gross oversight, I forgot to include my list of best supporting actress performance that I think deserve recognition behind Agnes Moorehead. Briefly, here they are:
Mary Astor (The Palm Beach Story), Billie Burke (In This Our Life), Gladys Cooper (Now, Voyager), Muriel George (Went the Day Well?), Hattie McDaniel (In This Our Life), Teresa Wright (Mrs. Miniver)
Does it seem like a short list? I agree, but I went through all the 1942 films I saw and this was all I came up with. I might be overlooking some, so if you think someone is blatantly absent, feel free to speak up.