The Doll Add-on: Overalls Pattern can be found:
Here on my website: https://shop.craftyintentions.com/b/gtW3f
Here on Ravelry: https://www.ravelry.com/patterns/library/doll-add-on-overalls
Or here on Etsy: https://www.etsy.com/listing/1854724172/doll-add-on-overalls-crochet-pattern-by