Mary L. Lockhart of Plymouth passed away on Thursday, April 9, 2015 at the age of 88. Mary was born in Detroit to Robert and Olive (nee Tolson) Seiler. She was the beloved wife of the late Richard Lockhart. Mary is survived by her children, Richard (Lynda) Lockhart, Patricia Johnsen, Roger (Jill) Lockhart, Dennis (Elaine) Lockhart and Brian Lockhart. She was the proud Grandmother of 12, Great Grandmother of 21 and Great-Great-Grandmother of 1. She is also survived by her brothers, James Seiler and Richard Seiler. A loving and devoted wife, mother, grandmother, great grandmother, great-great grandmother and sister, Mary will be missed by her family. Friends may visit Saturday, April 11, 2015 9am to 11am at the Schrader-Howell Funeral Home, 280 South Main Street, Plymouth until the time of the Funeral Service at 11am. Memorials may be made in memory of Mary L. Lockhart to a charity of choice.