Hallowell served in the U.S. Food Administration, and was chairman of the New England Committee for Supplementary Rations for Belgian Children during World War I.

[2] His father, Col Norwood Penrose Hallowell, road out on horseback from their estate in Medford to attend his son’s football games.

[1] After graduating from Harvard in 1901, he took a position in the securities department at the utilities consulting firm Stone & Webster, Inc. in Boston, where he became a partner and worked for sixteen years.

During and after World War I, he served as an assistant to Herbert Hoover in the United States Food Administration in Belgium and other parts of Europe.

In the early twentieth century, John, his brother Robert, and his cousin N. Penrose Jr moved to houses on Brush Hill Road in Milton, Massachusetts.

It is, however, the peculiar good fortune of humanity that the work and influence of a man blessed with purity of motives, strength of purpose, and clarity of vision, remain and grow stronger after he has passed away.