A Day with a Tramp, and Other Days — Walter A. Wyckoff
The Mercer Boys at Woodcrest — Capwell Wyckoff
The Mercer Boys' Cruise in the Lassie — Capwell Wyckoff
The Mercer Boys in the Ghost Patrol — Capwell Wyckoff
The Mercer Boys' Mystery Case — Capwell Wyckoff
The Mercer Boys on a Treasure Hunt — Capwell Wyckoff
The Mystery Hunters at the Haunted Lodge — Capwell Wyckoff
