Wilde's life has been the subject of numerous biographies since his death. The earliest were memoirs by those who knew him: often they are personal or impressionistic accounts which can be good character sketches, but are sometimes factually unreliable. Frank Harris, his friend and editor, wrote a biography, "Oscar Wilde: His Life and Confessions" (1916); though prone to exaggeration and sometimes factually inaccurate, it offers a good literary portrait of Wilde. Lord Alfred Douglas wrote two books about his relationship with Wilde. "Oscar Wilde and Myself" (1914), largely ghost-written by T. W. H. Crosland, vindictively reacted to Douglas's discovery that "De Profundis" was addressed to him and defensively tried to distance him from Wilde's scandalous reputation. Both authors later regretted their work. Later, in "Oscar Wilde: A Summing Up" (1939) and his "Autobiography" he was more sympathetic to Wilde. Of Wilde's other close friends, Robert Sherard; Robert Ross, his literary executor; and Charles Ricketts variously published biographies, reminiscences or correspondence. The first more or less objective biography of Wilde came about when Hesketh Pearson wrote "Oscar Wilde: His Life and Wit" (1946). In 1954 Wilde's son Vyvyan Holland published his memoir "Son of Oscar Wilde", which recounts the difficulties Wilde's wife and children faced after his imprisonment. It was revised and updated by Merlin Holland in 1989.