On April 2, 1816 her daughter Josette La Framboise, known as Josephine, married Benjamin Kendrick Pierce (1790–1850), American commandant of Fort Mackinac. When they later lived in Washington, DC, she was consulted by officials on Indian affairs. Benjamin was the brother of Franklin Pierce, who was elected in 1852 as U.S. President. Pierce and Josette had two children, Josette Harriet Pierce (also known as Harriet Josephine Pierce), born in 1818, and Benjamin Langdon Pierce, born in 1820. Josette La Framboise Pierce died on November 24, 1820. Their son Benjamin Langdon Pierce died in infancy. Magdelaine La Framboise took over the care of her granddaughter "dit" Harriet after her daughter's death.