Amelia Dyer was the most prolific baby farm murderess in history. Baby farming was the caring of illegitimate children for a lump sum payment. Dyer let the infants die from neglect and abuse almost immediately after receipt of each child, than she would pocket most of, or all, the fee.

Her most infamous murder is possibly that of Doris Marmon. Evelina Marmon, a 26 year-old barmaid, gave birth to an illegitimate daughter, who she gave to Dyer. The baby, Doris, was brought to Dyer’s daughter’s house, where she killed Doris by tying Doris’s neck with edging tape. Dyer was hanged for only one murder. She killed about 200 children.