Sister of Notre Dame de Namur Mary (Margaret Michele) Motz, 89, died Jan. 18 in Cincinnati.

Born in Cincinnati, Sister Mary taught for 10 years in parish schools before attending a Montessori training course in 1962. During her 47-year Montessori career, she served as administrator of Montessori schools, developed and directed Montessori teacher training programs and started new Montessori programs.

In the Archdiocese of Chicago, she was a coordinator and teacher at the Midwest Teacher Training Center in Evanston (1967-2010) while also working at other Midwestern schools.