After graduating from college, Seward served as a secretary to his father from 1849 to 1857, and served as associate editor of the Albany Evening Journal from 1851 to 1861.
On February 21, 1861, Seward arrived at the Continental Hotel in Philadelphia carrying a letter from his father for President-elect Lincoln. The letter contained information gathered by Colonel Charles Pomeroy Stone and General Winfield Scott. Stone had stationed three detectives from the New Yorkpolice department in Baltimore, Maryland to gather information about plots against Lincoln. Making his way by train from Illinois to Washington for his inauguration, Lincoln had intended to stop next at Baltimore, which was home to many secessionist sympathizers. According to information gathered by Stone's detectives, secessionists were planning to assassinate Lincoln during his stop in Baltimore. The warning Fred Seward brought would contribute to Lincoln's decision to pass through Baltimore under the cover of night, rather than stop and appear in public there. Although Allan Pinkerton also warned Lincoln of danger awaiting him in Baltimore, it was Seward's information that confirmed everyone's fears.
When his father was appointed Secretary of State in 1861, Seward became Assistant Secretary of State in charge of consular service under Lincoln and Andrew Johnson. He served in the position until 1869 and "assisted in the negotiations to the adoption of the Burlingame Treaty," which set the attitude towards China when the empire "accepted the principles of international law."
Attempt on father's life
On April 14, 1865, he was injured in an assassination attempt upon his father on the same night that Lincoln was murdered. Lewis Powell, also known as "Lewis Paine," an ex-Confederate co-conspirator of John Wilkes Booth attempted to kill William Seward while the Secretary of State was convalescing at home from a carriage accident. That was Powell's part in the plot to put the government into chaos; Vice President Andrew Johnson and President Lincoln were also to be killed that same evening. After Frederick blocked Powell from gaining access to William Seward's bedroom, Powell tried to shoot Frederick in the head. However, when the gun failed to fire, Powell quickly smashed the pistol over Frederick's head, causing several skull injuries. Frederick then collapsed and fell to the floor at the top of the stairs. Powell then burst into William Seward's room and stabbed him several times in the face and neck. Powell also injured a number of other bystanders, including Frederick's sister Fanny, his brother Augustus, his father's nurse Private George F. Robinson and messenger Emerick Hansell, but no one was killed. Seward's mother was sure that he was going to die; instead, she died on June 21, 1865 of a heart attack. His sister, Fanny, died soon afterward, in October 1866. Powell was hanged on July 7, 1865, along with David Herold, George Atzerodt, and Mary Surratt, who were also involved in the conspiracy.
Later life
Frederick's father died on October 10, 1872. Seward was a member of the New York State Assembly in 1875. At the New York state election, 1875, he ran on the Republican ticket for Secretary of State of New York, but was defeated by Democrat John Bigelow. He served again as Assistant Secretary of State under William M. Evarts from 1877 until his resignation in November 1879 due to illness. Seward was replaced by John Hay, the diplomat who was one of President Lincoln's former private secretaries. Seward also edited and published his father's autobiography and letters in a volume entitled Life and Letters of William H. Seward. Mostly, his life after 1881 was devoted to the practice of his legal profession and to lecturing and writing.
Personal life
On November 9, 1854 he married Anna Margaret Wharton of Albany, New York and spent the latter part of his life in a house he built in Montrose-on-the-Hudson, near Peekskill, in New York. The estate had nearly a mile of Hudson River water-frontage. Seward died at his home in Montrose on April 25, 1915 at the age of 84. He was interred with his family in Fort Hill Cemetery in Auburn, New York. Seward left an estate valued at $100,000. In 1916, a year after his death, his book Reminiscences of a War-Time Statesman and Diplomat, 1830-1915, a five-hundred page book about the Civil War and politics, was published by G.P. Putnam's Sons. Also in 1916, his widow sold their 50 acre Montrose estate.
