Black Widows of Liverpool

Catherine Flannagan (1829 – 3 March 1884) and Margaret Higgins (1843 – 3 March 1884) were Irish sisters who were convicted of poisoning and murdering one person in Liverpool, England, and suspected of four more deaths. The women collected a burial society payout (a type of life insurance) on each death, and were found to have been committing murders using arsenic to obtain the insurance money.