Background: Harriet Tubman (born Araminta Ross, c. 1822 - March 10, 1913) was an American abolitionist. Born into slavery, Tubman escaped and subsequently made some thirteen missions to rescue approximately seventy enslaved people, family and friends, using the network of antislavery activists and safe houses known as the Underground Railroad. She later helped abolitionist John Brown recruit men for his raid on Harpers Ferry.
Context: Tubman was born Araminta "Minty" Ross to slave parents, Harriet ("Rit") Green and Ben Ross. Rit was owned by Mary Pattison Brodess (and later her son Edward). Ben was held by Anthony Thompson, who became Mary's second husband, and who ran a large plantation near Blackwater River in Madison, Maryland. As with many slaves in the United States, neither the exact year nor place of Araminta's birth is known, and historians differ as to the best estimate. Kate Larson records the year as 1822, based on a midwife payment and several other historical documents, including her runaway advertisement, while Jean Humez says "the best current evidence suggests that Tubman was born in 1820, but it might have been a year or two later." Catherine Clinton notes that Tubman reported the year of her birth as 1825, while her death certificate lists 1815 and her gravestone lists 1820. In her Civil War widow's pension records, Tubman claimed she was born in 1820, 1822, and 1825, an indication, perhaps, that she had only a general idea of when she was born.  Modesty, Tubman's maternal grandmother, arrived in the United States on a slave ship from Africa; no information is available about her other ancestors. As a child, Tubman was told that she seemed like an Ashanti person due to her character traits, though no evidence exists to confirm this lineage. Her mother Rit (who may have had a white father) was a cook for the Brodess family. Her father Ben was a skilled woodsman who managed the timber work on Thompson's plantation. They married around 1808 and, according to court records, they had nine children together: Linah, Mariah Ritty, Soph, Robert, Minty (Harriet), Ben, Rachel, Henry, and Moses.  Rit struggled to keep her family together as slavery threatened to tear it apart. Edward Brodess sold three of her daughters (Linah, Mariah Ritty, and Soph), separating them from the family forever. When a trader from Georgia approached Brodess about buying Rit's youngest son, Moses, she hid him for a month, aided by other slaves and free blacks in the community. At one point she confronted her owner about the sale. Finally, Brodess and "the Georgia man" came toward the slave quarters to seize the child, where Rit told them, "You are after my son; but the first man that comes into my house, I will split his head open." Brodess backed away and abandoned the sale. Tubman's biographers agree that stories told about this event within the family influenced her belief in the possibilities of resistance.
Question: What else is significant about Tubman's family ?

Answer:
When a trader from Georgia approached Brodess about buying Rit's youngest son, Moses, she hid him for a month,