Mary Heffernan (Instagram Star) was born on April 05, 1978(age 40) in United States under Aries zodiac. Mary Heffernan ranking is 119204 ! Please boost for higher rank to be on top of Trending birthdays. Let's discover Mary Heffernan's profile such as: Date of Birth, Birth Place, Current Age, Nationality, Star sign, Parents, Siblings, Family members, Personal life, Childhood, Early life, Awards and Achievements, Known for, Interesting facts. Explore more details about Mary Heffernan on Wikipedia. Read trending tweets about Mary Heffernan on Twitter. Find professional information about Mary Heffernan on Linkedin below.