HOLTHAUS, Mary Lou (Conley), of Winthrop, September 14, 2016. Beloved wife of Paul V. Holthaus. Devoted mother of Christine Ross of Winthrop and Timothy M. Ross and his wife Susanna of Winthrop. Adored grandmother of Jake P. and Alexandra L. Ross. Dear sister of Edward “Ted” Conley and his wife Elizabeth “Bette” of Winthrop, Howard Conley and his wife Helen “Cookie” of Saugus, Margaret “Pegge” Cordes and her late husband Joseph “Skipper” of Winthrop, Thomas Conley of Winthrop and David Conley and his wife Elizabeth “Betty” of Woburn. Also survived by many nieces and nephews. Visiting hours will be held in the Maurice W. Kirby Funeral Home 210 Winthrop St. WINTHROP on Mon, Sept 19, from 9-11:30am. A Funeral Service will follow in the funeral home beginning at 11:30am. Relatives and friends are invited. In lieu of flowers, donations in her name can be made to Compassionate Care ALS P.O. Box 1052, West Falmouth, MA, 02574. Prior to her retirement, Mary Lou worked as a secretary for the Mass. Water Resource Authority. For guestbook and directions, please visit, www.mauricekirbyfh.com.