The Conway Daily Sun published a few nice articles on Fire Towers recently.
Please check them out here http://www.conwaydailysun.com/newsx/local-news/128914-sidebar-dry-spell-impacts-forests-in-mount-washington-valley
http://www.conwaydailysun.com/newsx/local-news/128901-white-mountain-chronicles-fire-lookouts-of-old