What is a comparison between Frances Ellen Watkins Harper and Phillis Wheatley?

Francis Ellen Watkins Harper and Phillis Wheatley were both amazing poets who overcame a time of slavery and segregation and produced outstanding works of art.
Before looking into ways that these two poets are similar, we need to acknowledge the ways in which they are also very different. Francis Ellen Watkins Harper was born a free woman in Baltimore. Though orphaned at a young age, she was able to receive a good education and was raised by her uncle, a civil rights activist. In her own life, she was an abolitionist and a suffragist as well as a poet. Much of her life was spent fighting for freedom for those living in slavery and for equal rights.
Phillis Wheatley, born some seventy years before, was a slave. She was born in Africa and brought to America when she was around seven years old, where she was sold to the Wheatley family. Though she was a slave, Phillis Wheatley was employed as a domestic slave in the Wheatley household and was taught to read and write. She did not receive the education she would have loved, but she was able to discover her love of poetry. With the help of the Wheatley family, her work became internationally recognized.
Both women wrote about themes of slavery, identity, and loss. This was an important reality for these poets, and much of their poetry confronts this.
Both poets were also very young when their first poetry was published. Frances Ellen Watkins Harper was twenty when her first book of poetry was published, and Phillis Wheatley may have been first published at thirteen.
Another important distinction between the two is the way in which they were able to find publication. While Francis Ellen Watkins Harper was active and known in America, Phillis Wheatley was only able to publish her poetry in Europe, because in the United States, publishers did not want to publish a black woman's work. One of her books of poems was published in America two years after her death, but while she was alive, she saw international acclaim but only injustice in America.
https://www.poetryfoundation.org/poets/frances-ellen-watkins-harper

https://www.poetryfoundation.org/poets/phillis-wheatley