Clayton W. Haskell, born in Portland, ME, is a lifelong resident of Windham. He graduated from Windham High School in 1971 and has since built a successful career as a farmer and small business owner at Pleasant River Farm & Feed. Clayton has been married to his wife, Kathryn, for 46 years, and they have a daughter, a son-in-law, and two grandchildren.

Clayton served in the National Guard from 1971 to 1977. His involvement with local governance includes serving on the Windham Town Council from 2017 to 2020, serving as Chairman from 2018 to 2019. He served on the Windham Planning Board from 1981 to 1991, where he served as Chairman from 1990 to 1991, and participated in the Windham Comprehensive Planning Committee from 1981 to 1983. He also contributed to the Community Development Block Grant Agriculture Incubator Study Advisory Committee from 2003 to 2004.

His commitment to community service is extensive. Clayton has been a leader in the 4-H community for 54 years and has held the position of past president of the Cumberland County 4-H Leaders Association. He served on the Eastern States Exposition Youth Committee and the 4-H Animal Science Committee from 1995 to 2008. Clayton also served on the Cooperative Extension Service Executive Board from 1981 to 1984.

In addition to his community service, Clayton has been active in various membership organizations. He serves on the Cumberland & York County Board of Directors for the Farm Service Agency and is the current Chairman. Clayton had held leadership roles in the American Pinzgauer Association as a Board member, past Treasurer, and past President. He was also a past State Director for the Maine Farm Bureau, past President of the Cumberland County Farm Bureau, and a member of the Cumberland Farmers Club and the Maine Beef Producers Association. Additionally, he is a member of the Presumpscott Lodge #127.