After their return to the United States, the girls and their mother primarily lived in Westport until her mother's health began to decline and she was sent to a sanitorium. She died around 1894 and soon thereafter, Marks married her second cousin, Henry Douglas Bacon (1876–1948). H.D. was the son of Frank Page Bacon and Mamie (née Cooper) and grandson of Henry Douglas Bacon, an early philanthropist who had banking interests in St. Louis and San Francisco. After the banking collapse of 1855, grandfather Bacon moved to Oakland and donated his extensive art collection to the University of California. As had been the case in his wife's family, H. D.'s parents had been estranged and divorced soon after Frank inherited his father's estate. The couple married over their family objections, as their union caused H.D. to quit school in his senior year at the Virginia Military Institute. The Bacons first lived in California, where their daughter Mabel, known as "Bell", was born in 1898, but were living in Scotland in 1900, when their son Henry Douglas Jr. (1900–1925) was born. A month after his birth, in March 1900, the family returned to the United States to settle in Philadelphia. In 1903, they moved to Bath, Maine, where H.D. began working in the shipyard of the Bath Iron Works. In 1904, H.D. bought Thorne Island near the eastern shore of the Kennebec River as a summer camp and deeded it to Bacon. The couple's third child Francis Page was born in Maine in 1908. Besides raising the children, Bacon was an accomplished sailor and in 1910 made headlines in the "New York Times" when she participated in a motor boat race from the New York Motor Boat Club to Bermuda, which touted that she was the first woman to participate in power boat race, was going to skipper the boat, and that she had a steamboat pilot's license. She made the news again in 1911, when she took up driving a car. In 1916, H.D. was hired to head one of the shipyards for the Panama Canal project and the family relocated to Panama, though they kept their home in Maine and returned periodically over the next 3–4 years. In 1921, H.D. who was heading the shipbuilding department of the Foundation Company in New Orleans, Louisiana, bought property to develop as a hotel near Pass Christian, Mississippi. He designed the hotel, but Bacon operated it.