Foraging for survival

I have tried to learn about edible native plants since I was in my late teens and taking a series of Botany classes. My professor was very enthusiastic about the California natives that grew all around the campus of our newly built college. Besides the basic info about plants and all their classifications, he led us on hikes up and down the canyons. We had to identify different plants and had to reproduce accurate drawings as well as collect small samples for preservation. He also led us on field trips specifically to discover the edibles and the medicinal plants. I had and kept several complete textbooks that I used on camping and hiking trips. In the last couple of years I have lost those books as well as field guides for identifying rocks and minerals,  shells, and so forth.
What I'm lacking in current books I'm going to library to find the information I need.
Now I'm living in the desert south of Tucson and learning about the high desert plants that grow here.
There are many other seniors living in the desert south of Tucson who have limited means and an interest in permaculture and preparedness. 
I'm looking to find you and work together to be more successful in surviving with a great life quality.
How about it. Do you hear my call? Let me know where you are and ee can work together.