She was born Jan. 26, 1955, in Port Chester, N.Y., to Norman and Ruth Wagner.
McDonnell graduated from Greenwich High School in 1973.
Survivors include her husband, Shawn; two daughters, Erin and Amy; one brother, Bill; one aunt, Dorothy Damberg; and several cousins.
Calling hours will be 4 to 8 p.m. Thursday, May 14, at the Castiglione Funeral Home, 544 Old Post Road No. 3, Greenwich.
A Mass of Christian Burial will be celebrated at 10 a.m. Friday, May 15, at St. Catherine's Church, 4 Riverside Ave., Riverside.
Interment will follow in St. Mary Cemetery, 35 Parsonage Road, Greenwich.
In lieu of flowers, memorial contributions may be made to the Ovarian Cancer National Alliance, P.O. Box 62885, Baltimore, MD 21264-2885.
Click here to follow Daily Voice Stamford and receive free news updates.