Judith Matthews Cronmiller, 64, of East Lansdowne, a registered nurse, died Saturday of complications from Stevens-Johnson syndrome, a skin disease, at Crozer-Chester Medical Center in Upland.

For 25 years, Mrs. Cronmiller was head nurse at Don Guanella School, a residential facility in Springfield, Delaware County, for boys with mental disabilities. For two years, until becoming ill last week, she was a nurse at Vitas Hospice at Mercy Fitzgerald Hospital in Darby.

The daughter of Irish immigrants, Mrs. Cronmiller grew up in East Lansdowne and graduated from Archbishop Prendergast High School. She earned an associate degree in nursing from Gwynedd-Mercy College.

In 1969, she married Charles H. Cronmiller. They had met through their mothers, who were best friends in Ireland.

When he died in 1985, their five children were ages 6 to 14. She devoted herself to her family, her daughter Kelly Ann Harter said.

Mrs. Cronmiller enjoyed watching crime programs on television.

In addition to her daughter, she is survived by sons Charles, Brian, and James; a daughter, Megan; three brothers; and six grandchildren.

A Funeral Mass will be said at 10 a.m. today at St. Cyril of Alexandria Roman Catholic Church, 153 Penn Blvd., East Lansdowne. Friends may call from 9 a.m. Burial will be in SS. Peter and Paul Cemetery, Marple Township.

Memorial donations may be made to the Stevens-Johnson Syndrome Foundation, Box 350333, Westminster, Colo. 80035.