John F. “Jack” McShea Jr., 81, who founded a telecommunications company in the 1960s and later was a founder of a real estate services firm, died Feb. 20 of esophageal cancer at his home in Frederick.

A son, Tim McShea, confirmed the death.

Mr. McShea began his career as an accountant with Washington area real estate firms in the 1950s. In the 1960s, he was named president and chief executive of Riviere Real Estate Investment Trust.

In 1968, Mr. McShea founded the Rockville-based Atlantic Telephone Co. The independent company provided telephone equipment to business clients. The company had five offices in Maryland and Virginia before it was sold in 1980.

In 1983, Mr. McShea and two of his sons were co-founders of McShea & Co., a commercial real estate services firm based in Gaithersburg. Mr. McShea continued to work at the company until two months before his death.

John Francis McShea Jr. was born in New Orleans and grew up in Silver Spring and Washington. He graduated from the District’s old Western High School and received an accounting degree from Southeastern University.

He was a parishioner of St. John the Evangelist Catholic Church and later St. Katharine Drexel Catholic Church, both in Frederick.

Survivors include his wife of 60 years, Elizabeth Waldron “Betty” McShea of Frederick; four children, John F. “Jack” McShea III, Judy McShea and Tim McShea, all of Frederick, and Dave McShea of Seattle; and nine grandchildren.

— Matt Schudel