I wouldn't do justice without giving credit to supportive quilt author Kyra E. Hicks. I guess she's been on the scene of many years.... and had certainly set an inspirational stage for persons like myself. Equally engaging is her book "Martha Ann's Quilt for Queen Victoria." I spent days learning about Liberia and its history - past and present.
This I Accomplish: Harriet Powers' Bible Quilt and Other Pieces
ALSO: check this site for explanation of 15-block on aforementioned Pictorial quilt
American (Athens, Georgia), 1895–98
Harriet Powers, American, 1837–1910
http://www.mfa.org/collections/search_art.asp?recview=true&id=116166