Jones worked for Marshall and Wildes of Boston before he was appointed as the first Consul to Hawaii, which was then known as the Sandwich Islands, on September 19, 1820. He was considered an advocate for commercial interests in Hawaii, and was often in conflict with missionary elements in the island. He was a
Unitarian. His career was full of turmoil and complaint, and had limited support or instruction from
Washington, D.C. Although "his disposition was so unsteady and irascible", he was known for his entertainment of visiting dignitaries, including
John Sutter. In 1838, Jones returned to Hawaii after a business trip in California and introduced Manuela Carrillo as his wife. Still married to Hannah, she initiated a divorce, after which
King Kamehameha III refused to acknowledge him as the Consul from the United States. In 1843, Manuela's father,
Governor Carlos Antonio Carrillo, and her uncle,
José Antonio Carrillo, were
granted Santa Rosa Island by
Governor Manuel Micheltorena. The brothers then sold the island to Manuela and her sister Francisca, who was also married to an American,
Alpheus Basil Thompson. The Jones and the Thompsons then established a cattle ranch on Santa Rosa Island. In 1846, after the United States invaded Mexico during the
Mexican–American War and occupied California, John and his wife moved to his native Boston. Jones later learned that Thompson had sold many of the island's livestock and didn't share the proceeds with him so he sued Thompson in 1851. Jones won the suit and Thompson appealed claiming John had "bought" witnesses. In 1857, Jones won the appeal and Abel Stearns was appointed as receiver to set the value of the property in dispute. Two years later in 1859, both Jones and Thompson sold their remaining interests in Santa Rosa Island to brother Thomas, Alexander, and Henry More. ==Personal life==