When these allegations were first published, the Shippen family countered with allegations of improper behavior on Burr's part. They claimed that Burr rode with Peggy Shippen Arnold in the carriage to Philadelphia after her stay with Mrs. Prevost, and that he fabricated the allegation because she refused advances that he made during the ride. Arnold biographer Willard Sterne Randall suggests that Burr's version has a more authentic ring to it: first, Burr waited until all were dead before it could be published; and second, Burr was not in the carriage on the ride to Philadelphia. Randall also notes that ample further evidence has since come to light showing that Peggy Shippen Arnold played an active role in the conspiracy. British documents from 1792 show that Mrs. Arnold was paid £350 for handling secret dispatches.