An American fiction writer and women's suffragist, she is most famous for the novels Prisoners of Hope and To Have and to Hold. Several of her works, including Pioneers of the Old South and Audrey, were adapted into silent films.
During her early years, she was taught at home by family members and tutors.
Her novels commonly include elements of both history and romance.
She was the Virginia-born daughter of a Civil War veteran-turned lawyer.
Johnston's 1911 Civil War novel, The Long Roll, spurred a conflict with the widow of Thomas Stonewall Jackson.