Sister Geraldine Blume, 66, an educator and member of the religious order of Sisters of the Holy Cross, died of pneumonia and renal failure Dec. 8 at Holy Cross Hospital.

Sister Geraldine was principal of Academy of the Holy Cross in Kensington from 1982 to 1990. She had taught English there for a year before she became principal.

From 1991 to 1999, she was an English teacher and director of admissions at McNamara High School in Forestville. For the last three years, she was area coordinator for the Sisters of the Holy Cross in this region.

In her years as principal at Holy Cross, she established an honors program and expanded the Advanced Placement program, developed an active Home and School Association and established a formal structure for the Alumnae Association.

She taught at secondary schools in Rhode Island, Indiana, Illinois and Michigan before joining the faculty at the Academy of the Holy Cross.

Sister Geraldine was born in Fort Wayne, Ind. She graduated from the College of Mount St. Joseph and received a master's degree in theology from Saint Mary's College and a master's degree in English from the University of Notre Dame.

She entered the Sisters of the Holy Cross in 1959 after teaching junior high in Fort Wayne for one year.

Survivors include a brother, Ralph R. Blume of Fort Wayne, and a sister, Judith Byrnes of Warwick, R.I.