1830 census lists Sarah Hofheintz as a free black woman.
"United States Census, 1830," database with images, FamilySearch, Jesse Mode, Wilmington, New Castle, Delaware, United States; citing 183, NARA microfilm publication M19, (Washington D.C.: National Archives and Records Administration, n.d.), roll 12; FHL microfilm 6,414
[Jesse Mode, Sarah Ann Mode Hofheintz' father, listed on line 19. The table shows one white female between the ages of forty and fifty (Mary Shuel); one free black male ages 55 to 100 (Jesse Mode); one free black female between 10 and 24 (Sarah, who would have been 19 at the time); one black female under ten (presumably Sarah’s sister Caroline, born in 1821).]