Kindred by Octavia E. Butler

Kindred (1979) is a novel by American writer Octavia E. Butler that incorporates time travel and is modeled on slave narratives. 

The book is the first-person account of a young African-American writer, Dana, who is repeatedly transported in time between her Los Angeles, California home in 1976 with her white husband and an early 19th-century Maryland plantation just outside Easton. There, she meets some of her ancestors: a proud, free Black woman and a white planter who forces her into slavery and concubinage. As Dana stays for more extended periods in the past, she becomes intimately entangled with the plantation community. Dana makes hard choices to survive slavery and to ensure her return to her own time.