Mary Jane Lachenmayer, 60, a nursing aide at Malcolm Grow Hospital at Andrews Air Force Base who lived in Oxon Hill, died July 22 in a hospital in North Bay, Ontario, as a result of injuries she had received in an automobile accident earlier that day. She was in Canada on vacation at the time of the accident.

A spokesman for the Ontario Provincial Police said Mrs. Lachenmayer had stopped her car on the soft shoulder of King's Highway No. 17, near North bay. Police said that when she tried to pull back on the road, one of her car's wheels caught on the pavement, and the vehicle overturned. She was transported to Civic Hospital where she died later that day. Police said her husband, Henry Adam Lachenmayer, the car's only passenger, was not injured.

Mrs. Lachenmayer was a native of Minnesota and moved here in the early 1950s. She had worked at Malcolm Grow since 1961. During World War II, she had served in the WAVES as a Navy medical technician.

She was a member of St. Columba Catholic Church in Oxon Hill.

In addition to her husband, of Oxon Hill, survivors include three sons, Carl Robert, of Gambrills, Md., and John Carl and Paul Henry Lachenmayer, both of Oxon Hill; three daughters, Jane Marie Dinkins of Brunswick, Me., Kathleen Strahan of California, Md., and Elizabeth Livesay of Waldorf; her mother, Marina Haynes of Grand Rapids, Minn.; a sister, Estelle Kilkenny of Milwaukee; two brothers, Robert Burns of Roseburg, Ore., and William Burns of Grand Rapids, Minn., and five grandchildren.