The Old Outboard Motor Service Manual: Volume 1: Under 30 hp prior to 1969 covers marine engines from the following manufacturers:
- Apache, Atlas Royal
- Brooklure, Buccaneer
- Chief, Chrysler, Clinton, Commando, Commodore, Corsair
- Elgin, Eska, Evinrude
- Firestone
- Gale, Guppy
- Hiawatha, Husky
- Johnson
- McCulloch, Mercury, Mid-Jet, Mono
- Neptune
- Oliver, Outboard Jet
- Scott, Sea Bee, Seagull, Sea King, Sears, Sovereign, Sprite
- Tecumseh
- West Bend, Wizard