Lady Mary Montagu brought the practice of variolation to England, where she had Dr. Charles Maitland variolate her two-year-old daughter. This page from Mr. Maitland's Account of Inoculating the Smallpox Vindicated describes Maitland's variolating of Ann Batt's daughter.
Source:
Wellcome Collection. Maitland T. Mr. Maitland's Account of Inoculating the Smallpox Vindicated. London: J. Peele, 1872.