Early in May 1779, Arnold met with Philadelphia merchant Joseph Stansbury who then "went secretly to New York with a tender of [Arnold's] services to Sir Henry Clinton". Stansbury ignored instructions from Arnold to involve no one else in the plot, and he crossed the British lines and went to see Jonathan Odell in New York. Odell was a Loyalist working with William Franklin, the last colonial governor of New Jersey and the son of Benjamin Franklin. On 9 May, Franklin introduced Stansbury to Major André, who had just been named the British spy chief. This was the beginning of a secret correspondence between Arnold and André, sometimes using his wife Peggy as a willing intermediary, which culminated more than a year later with Arnold's change of sides.