Duke A. Swan, 56, of West Allis, died on Sunday, June 23, at Froedtert and the Medical College of Wisconsin in Wauwatosa. Visitation will be from 11 a.m. until 1 p.m. on Saturday, June 29, at the Haase-Lockwood & Assoc. Funeral Home, 620 Legion Dr. Twin Lakes. Mass of Christian Burial will be at 1:30 p.m. at St. John’s Catholic Church, 701 N. Lake Ave. Twin Lakes, WI. Memorials may be made to the Swan Family at Box 310 Twin Lakes, WI 53181.