Late in life she wrote to her brother John Longley, who by then had been ransomed from the Abenaki and returned to Groton, against his wishes. She encouraged him to abjure his "heretical" Puritan faith and join her in following Roman Catholic ways.
In later years, she composed a letter to her brother John Longley, who at that point had been liberated from captivity with the Abenaki and was compelled to return to Groton despite his reservations. She exhorted him to abandon his "unconventional" Puritan beliefs and adopt Roman Catholicism alongside her.