 Joining the crew as unpaid supercargo, Sutter, 10 Native Hawaiians laborers and several other followers embarked on April 20, 1839.Staying at New Archangel for a month, Sutter joined several balls hosted by Governor Kupreyanov, who likely gave help in determining the course of the Sacramento River.The "Clementine" then sailed for Alta California, arriving on July 1, 1839, at Yerba Buena (now San Francisco), which at that time was only a small seaport town.