Bill Gates Sr. Regents for the University of Washington, and is a co-chair of the Bill and Melinda Gates Foundation, which his son Bill and his daughter-in-law Melinda founded. He has served as a director for Costco Wholesale, a bulk retail corporation, since 2003. He is also a founding co-chair of the Pacific Health Summit. He has adopted the suffix "Sr." to distinguish himself from his more famous son. Gates is co-author, with Chuck Collins, of the book "Wealth and Our Commonwealth: Why America Should Tax Accumulated Fortunes", a defense of the policies promoted by the estate tax. He married Mary Maxwell Gates
Bill Gates Sr. (b. 1929), whom he met at UW, and they remained married until she died in 1994. They had three children: Kristianne, Bill, and Libby. In 1996 Gates married Mimi Gardner Gates (b.1943), who was the director of the Seattle Art Museum. William H. Gates Sr. serves as an Honorary Co-Chair for the World Justice Project. The World Justice Project works to lead a global, multidisciplinary effort to strengthen the Rule of Law for the development of communities of opportunity and equity . Bill Gates Sr. William Henry Gates II (born November 30, 1925), better known as Bill Gates Sr., is