Robert Underwood Johnson was born on
Capitol Hill,
Washington, D.C. on January 12, 1853 and spent his childhood in
Centerville, Indiana. His brother
Henry Underwood Johnson became a member of Congress from that district (1881-1889). His father, Nimrod Hoge Johnson, was a lawyer and judge. His mother, Catherine Coyle Underwood, was a
suffragette. He was schooled in Calvinist Presbyterianism by his uncle by marriage, the Reverend Charles H. Raymond, who served as
chargé d'affaires of the
Republic of Texas at
Washington before its admission as a
state of the Union and by Quakerism of the Johnsons. He attended the Quaker
Earlham College in Richmond, Indiana, beginning at age fourteen and graduated with a B.S. in 1871. Johnson's first work was as a clerk in Chicago, Illinois, agency of the educational books of
Charles Scribner's Sons, and in 1873 he entered the firm's New York office, beginning his long connection with
The Century Magazine, then ''
Scribner's Monthly, under Josiah Gilbert Holland. The Century Magazine
was directed at political, religious, artistic, and social opinion leaders. One of his first major projects for Scribner was the editing of "Century War Series" (1883) and the subsequent four volumes Battles and Leaders of the Civil War'' (1887–88), to raise circulation (by 100,000), was a series on the great battles of the Civil War from the point of view of officers on both sides based on accounts sourced from soldiers' family records. Johnson secured four papers from General
Ulysses S. Grant, which later formed the basis of Grant's
Memoirs. He married Katharine McMahon in Washington, DC, on August 31, 1876. They had a son,
Owen McMahon Johnson (1878–1952), who became an American writer in his own right, and a daughter, Agnes McMahon Johnson (1880–1968). After their honeymoon, which included attendance at the
Philadelphia Exhibition, the couple relocated to the Murray Hill neighborhood in New York City. While in New York City, Johnson's love of nature and exploration extended to outings and ramblings. He was surrounded by social friends for musical and literary evenings and consumed all art forms, including opera and theater. His friends from the US and abroad included
Tommaso Salvini,
Paderewski,
the Clemenses,
Kipling and
Eleonora Duse. By the 1890s, Johnson and his wife became friends with the inventor
Nikola Tesla, for whom Johnson wrote a poem. He also collaborated with Tesla
transliterating Serbian poems by
Jovan Jovanović Zmaj in
The Century Magazine. ==International copyright==