Complex sentence: He was off to make his fortune in the goldfields of California and sailed on the brig "Fanny", which arrived in San Francisco on 29 August 1849, with Captain Francis D. Leathard in charge.
Split into simpler sentences: He was off to make his fortune in the goldfields of California. He sailed on the brig "Fanny", which arrived in San Francisco on 29 August 1849, with Captain Francis D. Leathard in charge.