My copy of the book (The Mariner's Guardian, The Cuckolds Lighthouse, A challenge to all except the Mariner by James D. Roche 0-595-41689-6 published by iUniverse) shows a copyright date of 2002. I have a paperback copy of the book in my library and I thought it contained a good deal of research, had its material organized fairly well, and was well written. It covers history, the physical aspects of the lighthouse, and covers the personnel associated with the light over the years. It has a great selection of b&w pictures (close to 50 of them). Below is a summary of the Contents:
Introduction
The Cuckolds Ledge
The Cuckolds Fog Signal Station
Light Station Cuckolds
Storms and Other Weather
Transportation
Keepers of Cuckold's Fog Signal/Light Station
The Coast Guard Takes Over
Daily Routine
Light Station Family Life
The Cuckolds Lighthouse
The Cuckolds Lighthouse in Pictures 2002
Cuckolds Lighthouse Keepers
Glossary of Terms
References
Index
At the time it was published the book carried a $10.95 price tag. I think I purchased the book through Abebooks for about a $1 discount.