Many students in Mrs. Soltis' class at Sacred Heart School in Dearborn, Michigan asked the same question as Michael.
Michael: Why did you put Mrs. Bird for your kindergarten teacher in STAGESTRUCK and in HERE WE ALL ARE you put Mrs. Immick?
Tomie: Miss Immick was the real name of my kindergarten teacher. I had changed her name to Miss Bird in THE ART LESSON, a picture book. I've continued using Miss Bird in the picture books (such as STAGESTRUCK), but I'm using her real name in the chapter books (such as HERE WE ALL ARE). The chapter books are more autobiographical, and accurate, than the picture books. I know it's a bit confusing. Congratulations to you and your class for noticing the different names.