Olson in Chelmsford, formerly of Woburn and Fitchburg, Saturday, July 30th, David A., beloved husband of Lucy A. (Mazzola) Olson. Devoted father of Gregory Olson and Evelyn, Edward Davey, Paula Beckett and Jason, Sharon Milley and Sean Davey and Pam. Dear brother of Marilyn Jacobi. Loving grandfather of seven grandchildren. Family and friends are kindly invited to attend a Funeral Mass in St. Barbaras Church, 100 Cambridge Road, Woburn on Saturday, August 6th at 11:30 a.m. Interment is Private. Donations may be made in Davids memory to the Sawtelle Family Hospice House, 320 Haverhill Street, Reading, MA 01867. Funeral arrangements under the direction of the Lynch-Cantillon Funeral Home, 263 Main Street, Woburn.