Sr. Mary Bertha Vondruska, RSM, died Dec. 17 at McAuley Life Center in Farmington Hills. She was 93.

Baptized as Ann, she was born to Joseph and Frances (Bocek) Vondruska on Jan. 18, 1923, in Bannister, Mich. She entered the Sisters of Mercy on Sept. 7, 1941, following her older sister, Frances. Sr. Mary Bertha made perpetual vows Aug. 16, 1947.

Sr. Vondruska taught elementary students in schools across Michigan, including in Berkley, Grand Rapids, Detroit, Bay City, Ada, Wyoming and Belding, including as a principal in some places. She earned degrees from Mercy College of Detroit and the University of Detroit. After 44 years as a teacher and principal, Sr. Vondruska moved to Remus to assist with kindergarten at St. Michael School and serve in pastoral ministry.

Funeral services were celebrated Dec. 21 in Farmington Hills. Interment is in Holy Sepulchre Cemetery, Southfield.