William Michael Seiter passed away peacefully on March 23, 2020 at the age of 71 in Bullhead City, AZ. Bill was born September 6, 1948 in Bronx, NY to Vincent and Jean (Greco) Seiter. He proudly served his country during the Vietnam War for 6 years in the United States Air Force. After over a 26 year career with the United States Postal Service, he retired to Bullhead City, AZ where he resided for the last 6 years. Bill loved to travel and chose Bullhead City for his home because he was an amazing card player. He was a collector of many different things. He especially enjoyed spending time with his family and friends. He was preceded in death, by his father Vincent Seiter. He is survived by his companion of 16 years, Margo Melton; mother, Jean Seiter; daughter Nicole Kennedy (Steve Truscinski); son William (Sondra) Seiter; brothers Kenneth (Joanna) Seiter; Vincent (Susanna), and Sister Elise Ann Preira. Beloved grandchildren, Austin, Taylor, Hayley, Madison and Emily, Loving aunt, as well as 4 nephews, 2 nieces and one great-nephew along with many loving cousins and friends. Bill touched many lives and will be greatly missed by all those who were honored to know him and who loved him. Arrangements have been entrusted to Desert Lawn Funeral Home, Mohave Valley, AZ. Military Services at South Florida National Cemetery will follow at a later date.