A native of Long Island, Sister Martina Schaefer, M.M.S., will celebrate her 60th Jubilee on Aug. 15 at a Mass and reception at the Medical Mission Sisters’ North American Headquarters in Philadelphia.

The former Helen Ann Schaefer, Sister Martina entered Medical Mission Sisters in 1950 at the age of 20. She earned her R.N. at St. Francis Hospital in Hartford, Conn., in 1956, and then was certified as a nurse-anesthetist at St. Agnes Hospital in Philadelphia in 1957. She served in Ghana for 18 years at Holy Family Hospitals in Berekum and Techiman. She has lived and worked North American Headquarters in Philadelphia since 1999.