Great finds! I LOVE the pocket knife. If it were mine I would hit it with some electrolysis (but not too much) and wax it til it shined just a bit! The milk token is fairly common with cow farms. A good place to start research is to pull up the 1920 census for that county and see if you can find the farmer's name. Also, check the plat maps on that county's web site (if they have it) and look for his name as the land owner. Great post!