|13 May 1764 baptism of Jane (Jenefer) Bosanco
Church of England, Crowan, Cornwall, Parish register for 1764 pg 62
Note that her brother John is listed just above her, but was baptized 4 days earlier. Jane was baptized on a Sunday. Possibly John was a twin, was not expected to live, and therefore was baptized earlier. Their parents named another son John two years later.
Source: Church of England, "Parish registers for Crowan, 1691-2000", FHL 246797; available online "England, Cornwall and Devon Parish Registers, 1538-2010", Crowan, Baptisms, Marriages, Burials, 1743-1812, image 35