Dorothy J. LeDoux, age 86, died Monday, June 5, 2017 at Lahey Clinic Hospital in Burlington. She was the beloved wife of Duane E. LeDoux. She was born in Somerville, August 7, 1930, the daughter of the late Fred C. and Catherine L. (Sheridan) Welch. Dorothy worked for Jordan Marsh Department Stores as a credit manager for 30 years. Besides her husband, Duane, she is survived by her son, James D. Foley of Virginia, her daughters, Cathy J. Olson and her husband, Mark, of Merrimack, NH and Kelley O’Hearn of Billerica as well as her brother, Donald Welch of Billerica. She is also survived by 4 loving grandchildren and 3 great grandchildren.