- Science Play!: Beginning Discoveries for 2-To 6-Year-Olds (Williamson Little Hands Series)
- Super Science Concoctions: 50 Mysterious Mixtures for Fabulous Fun (Williamson Kids Can! Series)
- Gizmos & Gadgets: Creating Science Contraptions That Work (& Knowing Why) (Williamson Kids Can! Series)
- Kids' Crazy Art Concoctions: 50 Mysterious Mixtures for Art & Craft Fun (Williamson Kids Can! Series)
- Wow! I'm Reading!: Fun Activities to Make Reading Happen (Williamson Little Hands Series)
- Frank R. Abate
- Elizabeth A. Wood
- Marjorie Barrows
- Leigh Olsen
- Women's Foundation of California
- Elizabeth Hamilton
- Mike Marinacci
- Foundation Of California Women's
- Mark Breen
- Carlo Fiori
- Gary A. Dias
- Carl R. Gálvez Rubino
- Sylvia Stoddard
- Judy Wuorio
- Denise Berg
- Emily Falk
- Kenneth Heuer
- Anthony Perles
- Donna Wares
- Joe Oesterle