Lee “Doc” Allenstein died peacefully at the age of 86, surrounded by family on Oct. 22, 2011, at Fairhaven, Whitewater, Wis. For more than 40 years, dairy clients and their families benefited from his expertise, wisdom, and thoughtful care. He was a natural instructor and enjoyed explaining his diagnoses and treatments. In 1987 he became a clinical professor and later a faculty associate at the UW-Madison School of Veterinary Medicine.