Mary Vain Mannix

Mary Vain Mannix, 77, of Crofton, Maryland, passed away on September 17, 2026, surrounded by her family. She is survived by her husband, Jack Mannix; her sons, Chris (Kelly) Mannix and Brendan Mannix; her daughter, Kathryn Borgeson (Nick); her grandchildren, Kerry, Ben, Nate, Parker, and Riley; her sister, Bet Pinelli (Ed); her brother, Frank Vain (Mary); and her former daughter-in-law, Carol K. Mannix. She was preceded in death by her beloved daughter-in-law, Erin Mannix.

Mary was born on July 15, 1949, in Philadelphia, Pennsylvania, to Francis and June Vain. She grew up on 67th Street in Southwest Philadelphia, where she attended St. Barnabas Catholic School. She graduated from Villa Maria Academy High School and Rosemont College, where she received a bachelor’s degree in education. Shortly after graduating from college, she married Jack on June 26, 1971, and moved to the Washington, D.C. area, where they began their careers. They settled in Crofton, Maryland shortly thereafter.

Mary worked at the National Security Agency for several years before transitioning to a career in education. She spent 31 years teaching, mentoring, and developing curriculum at Indian Creek School in Crownsville, Maryland, before retiring in 2019. She left an extraordinary mark on generations of Indian Creek students, families, and faculty.

Mary will be remembered for her kindness, humor, and devotion to her family. She was a loving wife, mother, and grandmother, a gifted educator, and a steadfast friend. She especially enjoyed traveling the world with her family, spending time at her home in Bethany Beach, Delaware, and being with her grandchildren, who were her greatest joy.

Friends and relatives are invited to a visitation on Wednesday, September 30, 2026, from 5:00 to 7:00 p.m. at Beall Funeral Home, 6512 NW Crain Highway, Bowie, Maryland 20715. A second visitation will be held on Thursday, October 1, 2026, from 10:00 to 11:00 a.m. at St. Elizabeth Ann Seton Parish, 1800 Seton Drive, Crofton, Maryland 21114, followed by a Funeral Mass at 11:00 a.m.

In lieu of flowers, the family has asked that memorial contributions be made to the Erin F. Mannix Memorial Fund, established in memory of Mary’s daughter-in-law, Erin, to provide philanthropic support for education, health services and animal welfare. Donations may be made to the Fund via Venmo @efm–memorial-fund. Donations by check should be made out to Erin F. Mannix Memorial Fund and mailed to the Erin F. Mannix Memorial Fund, c/o Kathryn Borgeson, 2212 Jacob Way, Gambrills, MD 21054. The Fund is a 501(c)(3) charitable organization.