William "Bill" Mansfield

1965 - 2025

Niwot, Colo. - William "Bill" Mansfield, 59, of Niwot, Colo., passed away peacefully Jan. 12, 2025, with family by his side. Bill was born in Boston, Mass., June 11, 1965, to Dottie and Michael Mansfield. He was raised in New London. He graduated from St. Joseph's School, Class of 1979, and Saint Bernard High School, Class of 1983. He graduated from Worcester Polytechnic Institute in Worcester, Mass., earning a degree in electrical engineering. He was a member of the crew team while attending WPI with many fond memories.

Bill was an amazing son, father, husband, brother and friend. He lived a life full of generosity and had a passion for learning. He had a keen sense of mind and could debate any side of an argument. If you knew Bill, you undoubtedly learned a lot from him. As a teenager, Bill enjoyed many happy summers sailing and working at the Thames Yacht Club in New London. He was passionate about his multiple hobbies, which included numerous travel adventures in the sprinter van that he designed and built out, ice and rock climbing, biking, hiking, model trains and planes, playing guitar, golf, hunting and fishing. He successfully completed many bike races including the Leadville Trail 100 (3 times), the LoToJa Cycling Race, and countless other cycling races. He enjoyed studying history and playing euchre and cribbage. Bill had a warm sense of humor with just the right amount of sarcasm mixed in.

Bill lived a life of success but was always humble in the work that he did as an electrical engineer. He recently retired from Emerson in Boulder, Colo., after 29 years of service. He earned 27 U.S. patents and was awarded Emerson's Prolific Inventor Award. Bill would love to share his day with Lisa and she would often have to tell him to bring it down to her level, which he patiently would do. He served as a volunteer firefighter for the Mountain View Fire Department earning many honors and recently served as the membership coordinator for the Boulder Aeromodeling Society. Prior to working for Emerson, he worked for Analog Devices in Massachusetts.

Bill is survived by his wife Lisa, with whom he shared 14 years of marriage; daughter Hillary Culbertson (Jamie); stepson Collin Duffy (Lauren); mother Dottie Mansfield; brothers, Steve Mansfield (Zeke) and Dave Mansfield (Deb); niece Emily Mansfield; and nephews, Jake and Nate Mansfield. Bill was preceded in death by his father Michael Mansfield; former wife Jodie Mansfield; and multiple fur babies.

A Celebration of Life will be held from 11 a.m. to 1 p.m. Saturday, Jan.18, at The Hampton Inn in Gunbarrel. The celebration will be at the building just to the South of the hotel. Please enter through the east door. The family welcomes all to join and to share stories and memories of Bill. Bill would have preferred that you not dress formally, but instead come in casual attire. Donations may be made in Bill's memory to The Boulder Aeromodeling Society or Summit Dog Rescue.

Bill will be missed dearly and will be forever loved and remembered by all who knew him.