Ah the corn that grows on trees...acorns and chestnuts were referred to as this by early settlers. Good article thanks for sharing your experiential knowledge on this! I have planted some Bur/Gamble crosses on my place but lost most of them due to unusual summer heat . A couple survived and I'll plant more. Lost most of my chestnuts too. A great book on this is : Tree Crops: A Permanent Agriculture by J Russel Smith written in the 1930s