Elizabeth was christened at Milton Earnest in Northamptonshire. Her parents had married at Castlethorpe nr. Hanslope in Buckinghamshire in 1789.
Isabella Agar is believed to be the daughter of Rev. MOSES AGAR, Vicar of Hanslope 1749-85. Moses was born c1717- place unknown. He had graduated from Cambridge University in 1739/40 and ordained at Lincoln the following year.