- Jingle Bells, Catherine Hapka ; illustrated by Ruth Sanderson
- Luna, Catherine Hapka ; illustrated by Ruth Sanderson
- Yatimah, Catherine Hapka ; illustrated by Ruth Sanderson
- The Winter Ground, adapted by Catherine Hapka
- The new pony, by Catherine Hapka ; pictures by Anne Kennedy
- At the show, by Catherine Hapka ; pictures by Anne Kennedy
- The trail ride, by Catherine Hapka ; pictures by Anne Kennedy
- Pony party, by Catherine Hapka ; pictures by Anne Kennedy
- Hapka, Cathy, Pony scouts, book 10
- Runaway ponies!, by Catherine Hapka ; pictures by Anne Kennedy
- The camping trip, by Catherine Hapka ; pictures by Anne Kennedy
- The camping trip, by Catherine Hapka ; pictures by Anne Kennedy
- Yatimah, Catherine Hapka ; illustrated by Ruth Sanderson
- The fastest finish, by Catherine Hapka
- Hapka, Cathy, Pony scouts
- Back in the saddle, by Catherine Hapka ; pictures by Anne Kennedy
- Junior Ninja Champion, the competition begins, by Catherine Hapka
- Back in the saddle, by Catherine Hapka ; pictures by Anne Kennedy
- The trail ride, by Catherine Hapka ; pictures by Anne Kennedy
- Santa's puppy
- Elska, Catherine Hapka ; illustrated by Ruth Sanderson
- Really riding!, by Catherine Hapka ; pictures by Anne Kennedy
- At the show, by Catherine Hapka ; pictures by Anne Kennedy
- Pony crazy, story by Catherine Hapka ; pictures by Anne Kennedy
- The new pony, by Catherine Hapka ; pictures by Anne Kennedy
- Elska, by Catherine Hapka ; illustrated by Ruth Sanderson
- Margret & H.A. Rey's Merry Christmas, Curious George, written by Cathy Hapka ; illustrated in the style of H.A. Rey by Mary O'Keefe Young
- Pony party, by Catherine Hapka ; pictures by Anne Kennedy
- Really riding!, by Catherine Hapka ; pictures by Anne Kennedy
- Blue ribbon day, by Catherine Hapka ; pictures by Anne Kennedy
- Hapka, Cathy, Junior Ninja champion
- Pony crazy, story by Catherine Hapka ; pictures by Anne Kennedy