Mary Anne Hearn (17 December 1834 – 16 March 1909) who wrote under the nom de plumes Marianne Farningham in The Christian World and for A Working Woman's Life, Eva Hope, and Marianne Hearn, was a British religious writer of poetry, biographies, prose and hymns. She was one of the few female writers in the Victorian period to emerge from the lower classes.

Mary Anne Hearn was born in Farningham in Kent in 1834 to Joseph Hearn and Rebecca Bowers, a religious Nonconformist couple in the Baptist denomination. In her memoir, she describes her thankfulness at having been raised in the country in a loving, devout, and amusing family. She tells the following anecdote about her father, a deacon and teetotaler who worked as a merchant:

My father was very fond of his bees, and he and they were good friends. I remember once he took me up with him to perform a curious little ceremony. He had lost a cousin, and he told me he was going to inform the bees, and they would say they were sorry. He tapped the hive, and then said in a low, quiet voice, "My cousin is dead," and I felt a cold shiver pass over me, as I distinctly heard a wailing response like a buzzing moan from the bees.

According to Hearn, her first piece of poetry was "an epitaph on a dead toad which we found in the garden, and which we put in a match-box and buried with great solemnity." Faced with their daughter's increasing desperation to learn how to read, Joseph and Rebecca allowed her to visit the pastor's daughter, Isabella, for basic lessons. Besides this, she was home-schooled, taught to perform domestic chores at home and to reflect on Bible stories to gain wisdom, as her family did not approve of the National School.

Hearn credits the poetry of Felicia Hemans as her inspiration for pursuing a poetic career, her first reading of "A Better Land" causing Hearn to feel faint and overcome with "strange, sweet emotions." Coming after the death of her little brother, the unexpected loss of her mother to what may have been consumption made Hearn the woman of the house at 12 years of age, forced to care for the home and her younger siblings. In the 1851 England Census, when she was 16 years of age, she is listed as "housekeeper" for her father's family. Hearn's further education was possible when the British and Foreign Bible Society opened a British School nearby, with Miss Eliza Hearn of Eynesford (no relation) as headmistress. With no time for reading and utterly despondent, Hearn was saved from a life of drudgery by this woman, who took an interest in the angry young girl after noticing her situation at church with "infinite compassion"; she consequently promoted Mary Anne's interest in education.

An apt pupil, Hearn eventually became a teacher at the British Schools in Bristol, then Gravesend and finally Northampton. In the 1861 England Census, Hearn lived as a lodger with the Howes family at 35 Newland, Northampton, and listed her occupation as "British Schools Teacher." In 1866, after deciding to become a full-time writer, at the instigation of her Baptist pastor Jonathan Wittemore, founder of Christian World, she joined the staff of his publication. Hearn was to write for this publication for the rest of her life, her contributions forming the basis of nearly forty other works of poems, etc. These works were published under the nom de plume "Marianne Farningham," a name derived from her birthplace and her forenames and suggested by Whittemore.

She also wrote biographies of contemporary British heroes such as Grace Darling, David Livingstone, General Gordon and Queen Victoria under the name "Eva Hope."

In 1885, she became the editor of the Sunday School Times, which she had previously written for, earning an annual sum of £50.