 Aymer Vallance was commissioned to produce the first biography of Morris , published in 1897 , after Morris ' death , as per the latter 's wishes . This presented the creation of SPAB as Morris ' greatest achievement . Morris 's next biographer was Burne @-@ Jones ' son @-@ in @-@ law John William Mackail , who authored the two @-@ volume Life of William Morris ( 1899 ) in which he provided a sympathetic portrayal of Morris that largely omitted his political activities , treating them as a passing phase that Morris overcame . 
