Birtish Ambassador assists Girl Scouts at 28th anniversary party. Washignton, D.C., March 12. Lord Lothian, British ambassador to the United States, came to be entertained, but instead, entertained the girl scouts at their headquarters here today on the occasion of the 28th anniversary of the founding of the organization, following a radio address to 572,000 girl scouts all over the world, Ambassador Lothian climaxed the party by feeding a piece of the birthday cake to 11-year-old girl scout Winifred McGowan of Troop 138, 3-12-40