I just read a wonderful tribute to her in the Washington Post.

Written by a friend of 40 years, one of the paragraphs quite says it all -
I've wondered often why no biography, nor even a New Yorker profile, has been written about this singular woman who has bettered the lives of uncounted millions of the otherwise rejected. Of late, we've had biographies of Brooke Astor, Helen Gurley Brown, Julia Child, Mae West and Gypsy Rose Lee (two of her, no less). Apparently fewer people are interested in reading 400 pages about a life of unglittery goodness and giving. About a woman who was faithful to one husband, one church, one mission -- and, worse, who was never jailed, never overdosed and never threw things at stakeout reporters.