Conversation so far:
Who did Harriet Tubman marry?
Harriet Tubman married a free black man named John Tubman.
When did Harriet Tubman and John Tubman marry?
Around 1844, Harriet Tubman married a free black man named John Tubman.
Did Harriet Tubman and John Tubman have any kids?
Harriet Tubman adopted a baby girl named Gertie in 1874, and lived together as a family
Where did Harriet Tubman and John Tubman live?
John and Harriet Tubman lived in Maryland.
What else is significant regarding Harriet and John Tubman's marriage?
The mother's status dictated that of children, and any children born to Harriet and John Tubman would be enslaved.

Question: Was her mother a slave?
Self-contained rewrite: Was Harriet Tubman's mother a slave?