A caption in the Nov. 5, 1935, Los Angeles Times reported that “Young Bobbie Harrell, son of Mr. and Mrs. Robert Harrell of ... Hollywood, was the host to a lot of his young friends at a Halloween party last Thursday afternoon. When all the masks were removed, the children were entertained by a puppet show before they went into the garden to play around the scarecrow. ...”
Three 4-by-5-inch negatives from the 1935 Harrell Halloween party are in the Los Angeles Times Archive at UCLA. Two unpublished images are below.
I’ve added fourth image from a 1935 Halloween Festival in Anaheim.