Mark D. Hamill 67, of Florence passed away January 5, 2025, at Cooley Dickinson Hospital. Mark was born in Schenectady New York on February 1, 1957 to the late James and Leona (Zielinski) Hamill. He grew up in New York and went to local schools, then moved to Florida with his family where he graduated high school. He attended the University of Central Florida earning his bachelors degree in Communications and went on to George Mason University in Virginia where he achieved his Masters degree in Software Engineering in the mid-90s. Mark worked many years as a software Engineer for USGS. He retired in 2015 and moved to Northampton where he remained very active in the community. He held a side business, PHPBB software maintenance and was a founding member of the Community Network Coalition to help bring municipal fiberoptic internet to homes in Northampton, even meeting with the mayor. Mark enjoyed spending time with his wife and enjoyed taking walks in Look Park. He will be greatly missed by his wife of 40 years Terri (Breedlove) Hamill, his daughter Rosalind Hamill, three brothers, James Hamill, Thomas Hamill, and Michael Hamill, four sisters, Mary Hamill, Teri Hamill, Lee Ann Musgrave, and Doris Hamill. Services for Mark will be held privately and at the convenience of the family. Donations may be made to Planned Parenthood in his name.