John Ellis Roosevelt (February 25, 1853 – March 9, 1939) was a lawyer with the Wall Street firm of Roosevelt & Kobbe, the president of the Elkhorn Valley Coal Land Company and secretary of the Broadway Improvement Company.

Brinckerhoff alleged that Robert Barnwell Roosevelt had committed malpractice by permitting a mortgage on a valuable piece of Manhattan real estate at 33 Nassau Street to be cancelled.

On February 19, 1879, he married Nannie Mitchell Vance (1860–1912), the daughter of Samuel B. H. Vance (1814–1890), at the recently built St. Nicholas Collegiate Reformed Protestant Dutch Church, Fifth Avenue and 48th Street, in New York City in Manhattan.

[21][22] Edith won the case in 1916 and Roosevelt was ordered to pay her $400 a month in alimony.

[23] John E. Roosevelt was a founder of The Sayville Yacht Club and served as its inaugural Commodore from 1901 to 1907.