Sister Marianna Minchin, O.P., who taught at the Lavelle School for the Blind in the Bronx for 26 years, 1969-1995, died Nov. 20 at Nyack Hospital in Nyack. She was 74. While teaching at Lavelle, she also taught for many years in the Weekend College program at Dominican College in Orangeburg. In 1995, she became director of Dominican's Bridge Program for students with disabilities, a post she held until her retirement last year. She also taught at St. Anselm's, 1963-1965, and SS. Philip and James, 1953-1954, both in the Bronx; and at Holy Cross in Manhattan, 1954-1963. She served in St. Martin de Porres Infirmary at St. Dominic's Convent, Blauvelt, 1968-1969. From 1965 to 1968 she was a member of Corpus Christi Monastery in the Bronx. Born in New York City, she entered the Dominican Sisters of Blauvelt in 1950 and professed final vows in 1955. She held bachelor's and master's degrees in education from Fordham University and a master's in English from Lehman College. She is survived by her sister, Clare Acocelli. A Funeral Mass was celebrated Nov. 28 at St. Dominic's Convent, with burial in the sisters' cemetery.