Lady Bridget Parsons: 1907-1972, Her Crowd from London and Britain in the madcap 1920s. The era of the Bright Young Things brought many ways in which the members of that group of toffs and swells spent their time. A time of constant frivolity and fun. One of the leading lights was Lady Bridget Parsons, sister of Michael, the youthful Earl of Rosse of Birr Castle, Ireland.