Mark Tierney Obituary Tierney, Mark G., age 52 of Plymouth, passed away suddenly February 5, 2012. He is survived by son, Kyle ; daughter, Caitlin and their mother, Diana. Other survivors include his mother, Arleen Stevenson; brothers, Dan and Tim; sisters, Sandy, Sue, Pat and Jo as well as many more loving relatives and friends. Mark was a dedicated Grounds Foreman for Wayzata Public Schools for over 25 years. Memorial service 6 PM Friday, February 10, 2012 at St. Philip the Deacon Lutheran Church, 17205 County Rd. 6, Plymouth. Visitation 4-6 Friday at the church. In lieu of flowers memorials preferred.