Rebecca Gwynne (d.1798)
Rebecca Gwynne was sister to Sarah, wife of Charles Wesley.
She greatly assisted Wesley in his relations with her family at the time of his courtship of her sister and the two remained very close. She never married and died in London.
Her brother Roderick served for a time in the army and saw active service in Germany during the seven years war (1756-1763). He was later appointed Governor of the West Indian island of Tobago.
Source: Wesley and Gwynne family papers (MARC)