(Back row, left to right) Vanessa Redgrave, Corin Redgrave and Lynn Redgrave, with their mother Rachel Kempson (seated) and Lynn's son Ben (on floor), at the Theatre Museum, London. * Three generations of the Redgrave acting dynasty gathered in London s theatre-land today to hand over a huge private family archive to the nation. The collection, a massive bundle of diaries, letters, other papers, photographs and recordings more than 41 metres thick was gathered by family patriarch Sir Michael Redgrave, one of Britain s greatest actors, who died in 1985.