M. Pat Heffernan was born December 9, 1930, in Waterford, Ireland, to Patrick Doyle and Alice Power Doyle, and passed away at the Lutheran Home in Arvada, Colorado, on August 26, 2013. Pat was preceded in death by her husband, Michael Joseph Heffernan, on December 27, 2011. She is survived by her three daughters, Anna Madrid and her husband Roger, Alice Weisgerber and her husband Randy and Cathy Florentz and her husband Art. She is also survived by her brother and sister-in-law, Bill and Mardie Heffernan, her grandchildren Tripper Florentz, Justin Mardrid, Eric Weisgerber, Trish Weisgerber, Jennifer Madrid and Mickaleen Florentz and great grandchildren, Bradley Lindroth, Troy Lindroth and Annabella Madrid. Viewing will be held Thursday, 3:00 PM - 5:00 PM, at Horan & McConaty Family Chapel, 3020 Federal Boulevard. The Funeral Mass will be held Friday, 10:00 AM at Holy Family Catholic Church, 4380 Utica Street. Interment will follow at Mount Olivet Cemetery. Please share your memories of Pat and condolences to her family by leaving a message in the Guestbook below.