Blanche Taylor Moore

Life insurance poisoner: two husbands, her father, mother-in-law, 
one or more lovers, and a pastor.  North Carolina, currently on
death row.

http://abcnews.go.com/sections/us/deathrow/deathrow_women.html

http://www.unsolvedmysteries.com/usm189366.html

http://www.crimelibrary.com/serial7/widow/7.htm

Made for TV movie: "The Black Widow Murders: the Blanche
Taylor Moore Story" 1993 (Elizabeth Montgomery)

http://web.ukonline.co.uk/craig.pierce2/lizshows.html

http://members.tripod.com/~VicMas/blackwid.html

Book: Preacher's girl : the life and crimes of Blanche Taylor Moore 
by Jim Schutze,   New York : Morrow, 1993