Arthur Cheney Train (6 September 1875 – 22 December 1945) was an Americanlawyer and legal thrillerwriter, particularly known for his novels of courtroom intrigue and the creation of the fictional lawyer Mr Ephraim Tutt.

Train was born in Boston, Massachusetts. His father was lawyer Charles Russell Train, who served for many years as attorney general of Massachusetts, and his mother was Sara Maria Cheney. Train graduated with a BA from Harvard University in 1896 and LLB from Harvard Law School in 1899.[1]
In 1897, Train married Ethel Kissam. They had four children. Ethel died in 1923 and Train married Helen Coster Gerard, with whom he had one child, John Train.

His father Charles Russell Train died( July 28, 1885) was a U.S. Representative from Massachusetts. He died while on a visit in Conway, New Hampshire, July 28, 1885. He was interred in Edgell Grove Cemetery, Framingham, Massachusetts