I have my dad's WWII sextant, manuals, etc. from his air force navigator days...he tried to teach me several times when I was a young sprout but I wasn't interested. Now that I am interested and want to learn, he is gone. We never appreciate something or someone so much as when we no longer have it/him.
I have purchased a book and video of Wm F Buckley's Celestial Navigation Made Simple (yeah, right) along with several other guides and hope to learn a little something.