• Descent Book 1: Descent from Man
• Ship's Boy
• Early Byrd
• Admiral (The David Birkenhead Series)
• Commander
• Commodore (The David Birkenhead Series)
• Commander (The David Birkenhead Series)
• Midshipman
• Lieutenant
• Ship's Boy (The David Birkenhead Series)
• Midshipman (The David Birkenhead Series)
• Lagrange
• Commodore
• Admiral
• Lieutenant (The David Birkenhead Series)