[6] By 1917, the year the United States entered the war, Marsh & McLennan had established offices throughout the country.

[4] Marsh was also the patron of anti-communist Jacob Nosovitsky, a Russian revolutionary who became a spy for the U.S Department of Justice.

[7] An Anglophile,[7] Marsh spent many years in England renting storied English country estates, including Medmenham Abbey in Buckinghamshire and Knebworth House in Hertfordshire.

[9] In 1917, the Marshes bought Bylaugh Hall and 736 acres of parkland in Norfolk (while still holding the lease to Warwick Castle).

[1] After a short illness, Marsh died at his winter home in Lake Wales, Florida on April 13, 1943.