The singing of happy birthday punctuated the Jack Conway Co. sales rally last month, in celebration of the 51st anniversary of the company. Events were held at the Plymouth Radisson hotel and Lombardo's Conference Center. "We are very happy to have been a part of the real estate community more than half a century, and we pride ourselves on remaining a privately-owned, non-franchised company that continues to offer services to our customers from 43 branch locations in Eastern Mass.," said Conway. The two sales celebrations, identical in format, were held in Plymouth and Randolph. Speakers included the company's president Dick Cahill, senior VP Denis Lilla, advertising director Marie Fricker, executive vice president Tom Rudolph, Conway financial services executive Rosemary O'Neil and chairman Jack Conway.