George Fleming named his plantation Hibernia,[5] the Latin word for Ireland, in honor of his island home country.

The property was on the west bank of the St. Johns River and was therefore in what was called “Indian Florida”.

During the civil war, Union Officer Guy Henry forced Margaret and the children to vacate the "Great House".

To supplement revenues for the suffering plantation, Margaret opened her home as a bed and breakfast to the tourists that traveled the St. Johns River.

Margaret would educate and teach scripture to her slaves and plantation workers in the sitting room of the Great House.

The chapel can now be toured and the main church is being leased by First Assembly of God Fleming Island.