Margaret M. Callahan, nee (Chelgreen), 89, passed away January 26, 2019 in Merritt Island, FL, surrounded by her children. She was raised in Philadelphia, PA. After marrying she became an original Levittown, PA homeowner where she and her husband Gene raised their four children. She was employed for many years in the office of Meenan Oil Co. in Tullytown and also worked in a mortgage company located at the One Oxford Valley office building. Upon retirement she watched her grandchildren. She enjoyed going to the New Jersey shore and she loved her many trips to Florida and especially going to Disney World. She took pleasure in all her family gatherings and she was also an avid reader. She was predeceased by her husband Gene Callahan. She is survived by her sons Gerald Callahan (Sharon), Robert Callahan (Kim), Thomas Callahan and her daughter Kathleen Ritter (Arthur). She has 4 grandsons Zachary Callahan, Sam Callahan, Kevin Mott and Kyle Mott. Funeral arrangements will be private.