Margaret Kilgallen wurde am 28 Oktober 1967 in Washington, District of Columbia, USA geboren. Sie war mit Barry McGee verheiratet. Sie starb am 26 Juni 2001 in San Francisco, California, USA.
She was diagnosed with breast cancer after she was pregnant and opted to forgo chemotherapy so that she might carry her pregnancy to term. Gave birth to her only child, a daughter Asha McGee on June 7, 2001, with her now widowed husband Barry McGee and died 3 weeks later on June 26th from complications from breast cancer at the age of 33.