Way back when.
Here's his bio from Wiki.
He wrote a series of back to nature type books called, Stalking the ...... [fill in the blank], plus a couple of others:
Stalking the Wild Asparagus (1962)
Stalking the Blue-Eyed Scallop (1964)
Stalking the Healthful Herbs (1966)
Stalking the Good Life (1966)
Beachcomber's Handbook (1967)
A Wild Way To Eat (1967) for the Hurricane Island Outward Bound School
Stalking the Faraway Places (1973)
Here's where you can get his books
I learn a lot every time I pick up one of these books. They are marvelous collections of lore and how-to. Look for them - open one up and read through a section. They're fun!
If you're looking for a gift for someone who's into self sufficiency, I highly recommend these books.