Girl Guides Rally in Hyde Park - Princess Elizabeth inspecting the guard of honour of Sea Rangers in Hyde Park, London, this afternoon (Sunday). More than 7,000 Girl Guides from London and the provinces marched to Hyde Park London, this afternoon (Sunday) to take part in a drum-head service and march-past. Princess Elizabeth and Princess Margaret were there to take the salute at the march past. The Drumhead service was conducted by the Bishop of Willesden, the Rt. Rev. E.M.G. Jones. May 19, 1946.