Sister Mary Ann Diersing, formerly known as Sister Robert Marie, is the daughter of the late Robert and Mary Rose Klempay Diersing.  Sr. Mary Ann DiersingShe entered the Ursulines from St. Edward Parish   after graduating from Ursuline High School.  She earned a B.S. in Education from Youngstown State University and an M. Ed. in Community Counseling from Kent State University.  Her ministries have included teaching at St. Patrick and Sacred Heart schools in Youngstown, St. Rose in Girard and Our Lady of Lourdes in East Palestine.  Serving in pastoral ministry, she spent five years in Peru, South America, and three years at Our Lady of Perpetual Parish Help in McDonald. Since 1979, she has served as a chaplain in the Spiritual Care Departments of several healthcare facilities.  She is presently a chaplain at St. Joseph Health Center in Warren.


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  1. Sr. Mary Ann we are related through your mother and my Grandfather John C. Klempay (WI)and his son John Klempay Jr. (IN). Since the ill health and death of our mother we have not kept in contact nor up on the family celebrations within the family so please accept our belated congratulations on your Golden Jubilee. I hope it was a happy one. I will bring your joyous news to the rest of our part of the family.

  2. Margaret (Margie) Diersing

    In reviewing information on our last name. I came across this entry. I am the granddaughter of August Henry and Mary Catherine Dierisng. They lived in the valley of Texas before moving to the community of Pep, Texas in the panhandle area. My father was Edward August. He was one of six sibilings. Rev. Leo, Alfred, Victor, Sylvester and one sister, Frances.

    I would love to hear of your family.
    Congratulations on your jubilee. – Margie Diersing

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