Like "traditional" stained flass saints, they are a mixed unch. Their common attribute is that they didn't get seasick in a rocking boat. While all were persons who made it possible for light to shine through them, they also generated a Fair bit of heat as well: a cover blurb calls them "men and women whose faith and vision challenged the 'establishments' of their day."There are indigenous Christians from many lands, including Canada's Henry Budd, Africans, Afro-Americans, Asians, and a West Indian. One characteristic common to this group seems to have been conflict with their sponsoring bodies "back home' when they tried to embellish the 1662 Book of Common Prayer with indigenous expressions of faith and worsnip.There is only one disappointing chapter in this otherwise excellent book. It is an add-on about church music, which, except for the obligatory politically correct nod toward Afro -American spirituals, focuses entirely on the traditional, classical Anglican style. A church musician of my acquaintance read the chapter and commented "but it's so incomplete!" Better not to have included the chapter at all than imply that Ralph Vaughan-Wilfiams offers the last word in Anglican music.