Sister Katherine Louise Lappeus, O.P., a Sister of St. Dominic, Amityville, L.I., for 69 years, died Feb. 27. She was 92.

Born in Albany, she was adopted at age three and grew up in Massachusetts. After high school, she became a licensed practical nurse at Glen Falls Hospital, Glen Falls, N.Y., and went to work at Brady Maternity Hospital, Mass., where she was born.

She entered the congregation on Sept. 8, 1945 from St. Vincent DePaul parish, Albany. Having a nursing background, she was assigned as a postulant to Christ Hall, to care for the aged and infirm sisters. Impressed by the suffering and death of one of her first patients, Sister Mary Baptist, she asked to take that as her religious name when she received her habit. She pronounced her vows on Aug. 7, 1947.

She dedicated nearly 30 years to ministering to the elderly at the Our Lady of Consolation Residence, Amityville, 1947-1975.

After the facility moved to West Islip, she ministered to the elderly within the Amityville Congregation in different ways: driving the Sisters to appointments, taking them shopping and being of general assistance to them.

In 1990, she joined Sister Mary Victoria Gabriel in creating a local community in Baldwin, L.I., where they provided residence and care for relatives of Dominican Sisters and others elderly persons.

Burial was in the sisters’ cemetery.