Abbie Farwell Brown was an American writer.

Abby Langdon Alger was an American writer and translator, mainly of religious, literary, or folklore texts.

Abigail Scott Duniway was an American women's rights advocate, newspaper editor and writer, whose efforts were instrumental in gaining voting rights for women.

Abraham "Abe" Cahan was a Lithuanian-born Jewish American socialist newspaper editor, novelist, and politician. Cahan was one of the founders of The Forward, an American Yiddish publication, and was its editor-in-chief for 43 years. During his stewardship of the Forward, it became a prominent voice in the Jewish community and in the Socialist Party of America, voicing a relatively moderate stance within the realm of American socialist politics.

Abraham Cowley was an English poet and essayist born in the City of London late in 1618. He was one of the leading English poets of the 17th century, with 14 printings of his Works published between 1668 and 1721.

Abraham Epstein was a Russo-Austrian rabbinical scholar born in Staro Constantinov, Volhynia.

Abraham Lincoln was an American lawyer, politician, and statesman who served as the 16th president of the United States from 1861 until his assassination in 1865. Lincoln led the Union through the American Civil War to defend the nation as a constitutional union and succeeded in abolishing slavery, bolstering the federal government, and modernizing the U.S. economy.

Abram Joseph Ryan was an American poet, Catholic priest, Catholic newspaper editor, orator, and former Vincentian. An active proponent of the helping both sides of the war - Norh and South. Many have said he was a priest for Confederate States of America but that was not shown in any military records, he has been called the "Poet-Priest of the South" and the "Poet Laureate of the Confederacy” which is an inaccurate description.

Achille Loria (2 March 1857 – 6 November 1943) was an Italian political economist.

Ada Cambridge, later known as Ada Cross, was an English-born Australian writer. She wrote more than 25 works of fiction, three volumes of poetry and two autobiographical works. Many of her novels were serialised in Australian newspapers but never published in book form. While she was known to friends and family by her married name, Ada Cross, her newspaper readers knew her as A.C. She later reverted to her maiden name, Ada Cambridge, and that is how she is known today.