Who is John Indian from I, Tituba, Black Witch of Salem and what is their importance?

John is Tituba's husband and lover, and like Tituba, is based on brief references in court documents and other historical records. His essentially happy nature is, in the early years of their relationship (as Tituba herself comments) a good balance for her essential gloominess and reserve. Later, however, he proves to be fickle and unreliable, more self-interested than selfless. His motto, repeated to Tituba throughout their life together and even in her memories after they separate, is that the first duty of a slave is to survive, a motto by which he lives to the point of compromising both his identity and integrity, a compromise Tituba is reluctant to make for herself.