His namesake grandfather, Haley Fiske, had established an iron foundry in New Brunswick which his sons continued after the U.S. Civil War.
[1] He was educated at privately by Henry Waters in New Brunswick before attending Rutgers College from where he graduated in 1871.
[1] After his graduation from Rutgers, he worked as a reporter for local newspapers for two years before becoming a clerk in the New York law firm of Arnoux, Ritch & Woodford.
After Hegeman died in 1919, Fiske was elected to succeed him as president of Metropolitan Life, which at the time was "the largest financial institution in the world.
[13][14] His widow died on December 31, 1946, at 10 Campden Road, her home in Scarsdale, New York.