Lisa Keller is 85 years old and lives in Truttikon in a modest apartment right next to her former farm. She gives me a mischievous smile as she spreads the wool yarn on the table and reaches for the needle to continue knitting her scarf. Of course, I don't call her Lisa; I simply call her Grandma. Oh, and did I mention; She has 13 Kids. That alone makes her pretty amazing.