CHELMSFORD - H. Louise (Gill) Miller, a Lowell native and Chelmsford resident, died Friday, Feb. 14, in Billerica. She was 76.She was born in Lowell on March 12, 1926, the daughter of the late Jesse B. and Hilda L. (DeLaHaye) Gill. She graduated from Chelmsford High School in 1943. Mrs. Miller had been a leader in 4-H Club activities.Survivors include, two sons and daughters-in-law, Capt. Richard J. Miller of the Chelmsford Fire Department and his wife, Karlene Normandin of Chelmsford, Donald D. and Leane (Durkee) Miller of Tyngsboro; two daughters and sons-in-law, Lynne and Nicholas Duquette of Milford, N.H., and Kathleen and John Waldron of Gardner; five grandsons, Nicholas P. Duquette, twins, Christopher M. and Jeffrey J. Waldron, and David J. Miller and Michael McKittrick; a granddaughter, Lauren McKittrick; two brothers, George F. Gill of Georgetown, and Gardner C. Gill of Lowell; and many nieces and nephews.