Kathryn P. O'Brien (Kate), 24, of Philadelphia, Pa., and Fairfield, the daughter of William and Susan O'Brien, died May 18 in Philadelphia.

Born in Bridgeport, she attended St. Thomas Aquinas School, the Academy of Our Lady of Mercy, Lauralton Hall, and graduated from the Carroll School of Management at Boston College. She worked as a senior marketing coordinator at Versus in Philadelphia, part of the NBC Sports Group. She enjoyed spending time with friends.

Survivors, in addition to her parents, include two brothers, James O'Brien of South Boston, Mass., and Patrick O'Brien of Fairfield; paternal grandparents, James and Joan O'Brien of Fairfield; maternal grandmother, Patricia Augenthaler of Glen Head, N.Y., and aunts, uncles and cousins.

A Mass of Christian Burial will take place at 10 a.m. Tuesday, May 24, at St. Thomas Aquinas Church, 1719 Post Road. Burial will be in Oak Lawn Cemetery. Calling hours will be from 4 to 8 p.m. Monday, May 23, in the Spear-Miller Funeral Home, 39 South Benson Road. Memorial contributions may be made to St. Thomas Aquinas School. For information or to sign an online guest register, visit www.spearmillerfuneralhome.com