There used to be a yellow Dutch Colonial home here on the west side of Union Avenue, just south of Revolution Street, which was bought in 1927 by William C. Coakley (1903-1962) and Margaret F. Coakley (1905-1975). They raised four sons in the house, Richard W. Coakley; William Coakley; James R. Coakley; and their youngest, Arthur E. Coakley. Arthur and his wife Patricia Sue were the parents of Dwayne and Margaret “Margie” Coakley who are best known for beginning Coakley’s Pub on St. John Street in 1996.

In 1954 William and Margaret Coakley also bought an adjacent lot from Dr. Edward and Cathryn Simon (who had just bought the Spencer-Silver Mansion, further north). The widowed Margaret Coakley sold both lots in 1972 to E. Henry Richardson (1928-1995) and JoAnn Richardson who had owned the florist shop next door at #540 since 1952. In 1977 the Richardsons demolished the Coakley house to construct a three-story 60,760 square foot Union Avenue Parking Garage that is on Union Avenue directly across from Harford Memorial Hospital. By the time of Henry Richardson’s 1995 death, he was also president and chief executive officer of Home Mediservice Inc., a medical supply and equipment firm.

The E. Henry Richardson Trust and Mark D. and Laura B. Richardson sold this to Upper Chesapeake Properties, Inc. That transaction included two properties that now are open grass lots on the southwest corner of South Union Avenue and Revolution Street. Those homes were 506 and 508 Revolution Street and are discussed on Revolution Street.