From 1862 to 1864, she taught in the Detroit public schools.
In 1864, she married Carnett C. Lathrap, then assistant surgeon of the Ninth Michigan Cavalry.
In 1865, they removed to Jackson.
There, she joined the Methodist Episcopal Church, of which her husband was a member, and became a speaker in the church classrooms.
In 1871, she was licensed to preach the gospel and began in the Congregational Church in Michigan Center.
Her sermons aroused the people, and for years, she labored as an evangelist, many thousands being converted by her ministry.

She took an active part in the Women's Crusade, was a co-founder of the Woman's Christian Temperance Union, and served as president of the State union of Michigan from 1882.
Her work was largely devoted to that organization for at least eight years.
She labored in various States and was a strong helper in securing the scientific-instruction law, and in the Michigan, Nebraska and Dakota Territory amendment campaigns.
In 1878, she secured the passage of a bill in the Michigan legislature appropriating US$30,000 for the establishment of the Girls' Industrial Home, a reformatory school, located in Adrian.
In 1890, she was a member of the Woman's Council in Washington, D.C.
Her evangelistic and platform work consumed a major part of her life and effort, but her literary work was also important.
Her poems were meritorious productions, and she wrote enough to fill a large volume.
During the years of her great activity in evangelistic and temperance work, her literary impulses were over-shadowed by the moral work in which she was engaged.
Later in life, she wrote more.
Her memorial odes to James A. Garfield and John Bartholomew Gough were widely quoted, as were also many other of her poems.
Her lectures were always successful, and she was equally at home on the temperance platform, on the lecture platform, in the pulpit or at the author's desk.
Her oratory caused her to be styled "The Daniel Webster of Prohibition," a name well-suited to her.

 She died January 3, 1895.
From 1862 to 1864, she taught in the Detroit public schools. In 1864, she married Carnett C. Lathrap, then assistant surgeon of the Ninth Michigan Cavalry. In 1865, they removed to Jackson. There, she joined the Methodist Episcopal Church, of which her husband was a member, and became a speaker in the church classrooms. In 1871, she was licensed to preach the gospel and began in the Congregational Church in Michigan Center. Her sermons aroused the people, and for years, she labored as an evangelist, many thousands being converted by her ministry.
She took an active part in the Women's Crusade, was a co-founder of the Woman's Christian Temperance Union, and served as president of the State union of Michigan from 1882. Her work was largely devoted to that organization for at least eight years. She labored in various States and was a strong helper in securing the scientific-instruction law, and in the Michigan, Nebraska and Dakota Territory amendment campaigns. In 1878, she secured the passage of a bill in the Michigan legislature appropriating US$30,000 for the establishment of the Girls' Industrial Home, a reformatory school, located in Adrian. In 1890, she was a member of the Woman's Council in Washington, D.C.
Her evangelistic and platform work consumed a major part of her life and effort, but her literary work was also important. Her poems were meritorious productions, and she wrote enough to fill a large volume. During the years of her great activity in evangelistic and temperance work, her literary impulses were over-shadowed by the moral work in which she was engaged. Later in life, she wrote more. Her memorial odes to James A. Garfield and John Bartholomew Gough were widely quoted, as were also many other of her poems. Her lectures were always successful, and she was equally at home on the temperance platform, on the lecture platform, in the pulpit or at the author's desk. Her oratory caused her to be styled "The Daniel Webster of Prohibition," a name well-suited to her.
 She died January 3, 1895.
Mary Torrans Lathrap