David was born on September 11, 1949, in Lebanon, NH, passed away on Wednesday May 26th.   Son of Burt and Eleonor (Chesley) Thornton.  He is survived by his wife of 20 years, Diane (Hashem) Thornton of North Reading, MA; his stepson Karl Russo Jr, also of North Reading; a brother and two nephews.  He was predeceased by his twin brother William (Billy) Thornton.

A Vietnam veteran, David served in the US Army from 1969-1972, serving in the Army Security Agency with a top-secret crypto clearance.  Following his service, David graduated from Suffolk University in Boston, with a Master of Science degree in Business Education in 1976.  He held a number of professional roles in the software industry, reaching Vice President in his last position.  After retiring, he worked for five years in engineering at the Veterans Administration, lending his time and experience to his fellow service members.  He loved all kinds of animals, and his hobbies included traveling, playing poker and handicapping horses, and he successfully took on a number of challenges throughout his personal and professional life.

A memorial service will be held at Cota Funeral Home at 335 Park St. in North Reading on Saturday, June 12th ,  from 10 am to noon.  In lieu of flowers Please make donations to the Veterans of North Reading.  Please make checks out to "North Reading Veterans Gift Account" in memory of David.  Please mail to The North Reading Veterans, in care of Sue Magner, 235 North St, North Reading, MA, 08164.