My Sibling Doll creator Loretta Boronat founded LorettaRose, LLC in hopes of making clothes and accessories for dolls. However, her experience as a seamstress and her dedication to her work led to her starting her own doll business. She created characters that aim to teach children about community and goodwill, and her creations are designed to come with lessons about treating others, especially people with disabilities, in a kindly manner.
Her advocacy led her to create the My Sibling doll series. Every 18-inch doll in this series deals with characters having a sibling with mental disabilities. Boronat also developed the My Pal doll which includes dolls with booklets that contain stories dealing with caring for each other and the environment.