On July 1, 1856, the clipper ship Neptune’s Car left New York Harbor bound for San Francisco. It was one of three ships in an informal but high-stakes race. The other two vessels — the Intrepid and the Romance of the Seas — were fast, well-crewed ships. Money had been wagered on the outcome. The pressure to arrive first was real. No one aboard Neptune’s Car could have guessed that before the voyage ended, a 19-year-old pregnant woman would be the one steering the ship.

The ship’s captain was Joshua Patten, Mary’s husband. Mary Ann Brown Patten had married Joshua at 16 and had already sailed with him on previous voyages. She used those trips to teach herself navigation, celestial charts, and basic medical care — skills that most women of her era never needed and never sought. She was not a passenger. She was a capable partner who took her education at sea seriously. As Neptune’s Car pushed south toward Cape Horn, Captain Patten collapsed. He was suffering from tuberculosis, and the illness struck him hard. He fell into a coma and was confined to his cabin, completely incapacitated. Under normal maritime law and custom, the first mate would step up and take command. But that was not an option on this voyage. Captain Patten had already locked the first mate in his cabin before falling ill. The mate had been caught being negligent in his duties, and there was strong suspicion that he had placed bets on one of the competing ships — giving him a financial reason to slow Neptune’s Car down. He was confined and could not be trusted. The second mate, though present, was illiterate and had no ability to navigate. That left Mary Patten as the most qualified person on the ship.
She was eight months pregnant when she took command. Navigating Cape Horn is one of the most brutal challenges in open-water sailing. The waters at the southern tip of South America are notorious for violent storms, freezing temperatures, and unpredictable seas. Experienced captains dreaded the passage. Mary Patten stood at the helm and guided the ship through it. Then the confined first mate made his move. From his cabin, he sent word to the crew urging them to mutiny. His argument was straightforward: divert to Valparaiso, Chile, where the ship could take on a real captain and the crew could escape the dangerous conditions. It was a tempting case. They were in rough water, their captain was in a coma, and the person giving orders was a teenage girl who was visibly pregnant. Mary Patten addressed the crew directly. She laid out the practical consequences of stopping — lost time, potential forfeiture of cargo contracts, and the near certainty of losing the race entirely. She did not plead. She made her case clearly and firmly. Every single crew member voted to continue under her command. The attempted mutiny was over.

For 56 days, Mary Patten ran the ship while simultaneously nursing her husband. She studied medical texts to better understand his condition and worked to keep him alive. By multiple accounts, she did not change her clothes for 50 of those days. Sleep was taken in short intervals. She split her time between the quarterdeck and her husband’s bedside, managing the crew and managing his care at the same time. Joshua Patten had gone blind from the illness in addition to falling in and out of consciousness. Mary read to him during his waking moments and monitored his condition through the nights. She kept detailed logs of the voyage, tracked the ship’s position using the navigation methods she had self-taught, and made the daily decisions that kept the crew functioning. Neptune’s Car entered San Francisco Harbor as the second ship in the race, beating out the Intrepid. When a harbor pilot came aboard to guide the ship to its berth — standard practice for incoming vessels — Mary Patten declined the offer. She took the helm herself and brought Neptune’s Car in. The achievement did not go unnoticed. The ship’s insurers awarded her $1,000 in February 1857, acknowledging that her command had saved them a considerable financial loss. When asked about the reward, Mary said she had only done her duty as a wife. That was how she framed it — not as a historic act of seamanship, but as a personal obligation she had honored. After reaching San Francisco, Joshua Patten was transported back to New York aboard the steamer George Law. The couple returned to Boston together. Less than a month after arriving home, Mary gave birth to a son. They named him Joshua, after his father. Captain Joshua Patten died in July 1857. He never fully recovered from the tuberculosis that had felled him at sea. He was 29 years old. The Boston Courier organized a relief fund for Mary following her husband’s death. She received $1,399 from that effort — a meaningful sum at the time, though no amount could offset what the voyage and its aftermath had cost her personally. She had crossed Cape Horn in a storm while pregnant, suppressed a mutiny, nursed a dying man for nearly two months, navigated one of the world’s most dangerous stretches of ocean, and delivered a healthy son — all before her 20th birthday.



