March 31, 1854 - Jane Toppan

Jane Toppan (born Honora Kelley; March 31, 1854 – August 17, 1938), nicknamed Jolly Jane, was an American serial killer who murdered 12 people in Massachusetts between 1895 and 1901, although she confessed to killing 31 and is suspected of killing more than 100. The killings were carried out in Toppan's capacity as a nurse, targeting patients and their family members.

Content sourced from en.wikipedia.org/wiki/Jane Toppan under CC BY-SA 4.0.