- Cărți electroniceHidden History of MaineHarry Gratwick
- Cărți electroniceHidden History of MaineHarry Gratwick
- Cărți electroniceHistoric Shipwrecks of Penobscot BayHarry Gratwick
- Cărți electroniceStories from the Maine CoastHarry Gratwick
- Cărți electroniceThe Forts of MaineHarry Gratwick
- Cărți electroniceMainers in the Civil WarHarry Gratwick
- Cărți electroniceThe Maritime Marauder of Revolutionary MaineHarry Gratwick
- Cărți electronicePenobscot BayHarry Gratwick