Historian Craig Steven Wilder calculated that between 70 and 80 percent of all Flatbush families in 1800 had an enslaved person. Johannes Lott, the original owner of the Hendrick I. Lott House, was one of the largest Kings County slaveowners with sixteen enslaved people in his household. For several decades after the Revolutionary War, New York merchants and farmers continued to engage in the slave trade. The Gradual Emancipation Law of 1799 emancipated people of African descent born after July 4, 1799. Women born before that date remained enslaved until the age of 25 and men to the age of 28. Men and women escaping enslavement often went to Manhattan, where they could live within the community of free blacks.