He resigned from the Navy in 1875 and was appointed first lieutenant assistant surgeon of the United States Army.

During the Spanish–American War, he served on the hospital ship Relief, transporting sick and injured soldiers between Cuba and Puerto Rico.

[2] In 1909, he was appointed Surgeon General of the United States Army, a position which he held until the time of his death.

[3][4][5] During World War II, the El Mirador Hotel in Palm Springs, California, was purchased and operated as the United States Army Torney General Hospital, named in his honor.

[6][7] He was buried at the West Point Cemetery, United States Military Academy, New York.