[1] Fuller had a record of 40 years' service for the soldiers of the Union Army, having enrolled herself as a worker in the United States Christian Commission during the early days of the Civil War.

[1] Her father, Samuel Mills, who was an intense abolitionist and a public-spirited citizen, taught his daughter to take an interest in the leading topics of the day.

When only a schoolgirl, she attended with him meetings which were addressed by Daniel Webster, Rufus Choate, Charles Sumner, Wendell Phillips, and other great orators of that period.

On February 12, 1864, he enrolled his name for the third time, and was mustered into the service six days later as a member of Company C, 4th Massachusetts Cavalry Regiment.

[2] Remembering with gratitude that an army nurse ministered to her husband in the hospital, Fuller devoted her life to the soldiers' cause.

She served as secretary, vice-president, and president, also as a delegate to the State convention of Ladies' Auxiliary Societies, held at Fitchburg, Massachusetts, 1879.

[2] In 1881, a committee was chosen by the women of the WRC to cooperate with the trustees of the Soldiers' Home, Chelsea, Massachusetts in their plans for the bazaar.

Fuller was chairman, and by her personal appeals, official correspondence, and public addresses created great interest in the project, as shown by the fact that the WRC tables netted US$4,189.25.

Fuller was the first woman to give a public address in behalf of the Home, accepting an invitation extended by General Sargent to speak in Haverhill, Massachusetts.

[2] Fuller served in official positions in the Ladies' Aid Association of the Soldiers' Home ever since its formation in 1882, including vice-president.

In her capacity as president and secretary, she traveled thousands of miles, instituted 19 corps in Massachusetts, five in Maine, and assisted Mrs. E. Florence Barker and M. Susie Goodale, associate officers, at the establishment of 18 others.

[2] Fuller conducted a large correspondence, writing 1,500 letters and 500 post cards,[1] arousing an interest in the order outside of Massachusetts.

As the result, in November 1882, Fuller, in company with Barker (her successor as Department President), organized several corps in that State.

During that year, she instituted three corps in Rhode Island and visited Vermont on a tour of inspection, organizing a department in that State.

3, in order to enter upon her duties as the official head of the National WRC, the post on July 24, 1885, adopted a series of resolutions expressing their warm appreciation of her loyalty and devotion.

[2] During her year as National President, Fuller visited the Departments of New Hampshire, New York, Pennsylvania, Ohio, and Illinois.

She was prostrated by the intense heat during that summer in Washington, D.C. A severe illness followed, resulting in serious deafness, and she was obliged to defer active work for two years.

As National Counselor, she performed active duties during the year, and had a prominent part in all the receptions and other gatherings connected with the Order during encampment week.

In the Sunday-school connected with the Meridian Street Methodist Episcopal Church , of East Boston, of which she was a member, she was for many years the teacher of a large class of young women.

She was also an earnest worker in the International Order of the King's Daughters and Sons, holding for six years the office of leader of the Inasmuch Union of Medford.