Stephanie Calmenson is one of the ghostwriters of the Baby-Sitters Little Sister series for at least the following books:
- #11 Karen's Prize
- #19 Karen's Good-bye
- #23 Karen's Doll
- #51 Karen's Big Top
- #58 Karen's Ski Trip
- #59 Karen's Leprechaun
- #63 Karen's Movie
- #70 Karen's Grandad
- #71 Karen's Island Adventure
- #74 Karen's Softball Mystery
- #77 Karen's School Surprise
- #78 Karen's Half Birthday
- #80 Karen's Christmas Tree
- #88 Karen's Puppet Show
- #91 Karen's Pilgrim
- #102 Karen's Black Cat
- #104 Karen's Christmas Carol
- #106 Karen's President
- #100 Karen's Book
- #110 Karen's Swim Meet
- #114 Karen's Chicken Pox
- #117 Karen's Mistake
- #121 Karen's Gift
- SS#6 Karen's Campout