- "I trust the system. They keep secrets for a reason."
"But why would S.H.I.E.L.D. keep details of your death from you? They're your family. Your only family, since you've lost your mother, too."
- ―Phil Coulson and Raina
Julie Coulson was the mother of S.H.I.E.L.D. Agent Phil Coulson.
Julie Coulson got married to Robert Coulson and, in July 1964, she gave birth to their only child, Phil Coulson. Robert Coulson died when their son was at a young age.
Julie Coulson's death was the loss of the last remaining family member for her son, Phil Coulson, who considered S.H.I.E.L.D. his only family from there on.