Mr. Brophy was born and raised in southern Arizona. After graduating high school, he left the state for college. Following college graduation, then to pursue a career in the agricultural commodities export and trading business, where he lived in many cities in the Midwest and in New York City over a period of eight years.
In 1981 he began a career as a professional commodities futures trader in Chicago, where he owned a seat on the Chicago Board of Trade (CBOT). He was actively involved in exchange policy and governance, serving on the CBOT Board of Directors; the Board of Governors of the Board of Trade Clearing Corporation; the Board of Directors of the Minneapolis Grain Exchange; the Chicago Mercantile Exchange (CME) Risk Committee; and the boards of the Washington D.C.-based National Grain Trade Council and Commodities Markets Council. He owned memberships on the Kansas City Board of Trade, the Minneapolis Grain Exchange and the New York Stock Exchange. He retired from active trading in 2016.
He continues to be an active investor and farmer. He and his wife, Carleen, moved in 2011 from Chicago to Jackson, Wyoming, where they continue to reside. In 2012, they built a residence in Scottsdale where they now spend the winter months.
Mr. Brophy and his wife support the Political History and Leadership program at Arizona State University, which exposes ASU undergraduates to the history and intellectual concepts which lie at the roots of Western Civilization and the founding of the American Republic.
They are active donors to conservative Republicans in Wyoming and Arizona, focusing in particular on state legislative candidates, and also to conservative Republicans in Congress.
Mr. Brophy has served on the Board of Directors of the Goldwater Institute in Phoenix, the Board of Trustees of the Buckeye Institute in Columbus, Ohio, and various charitable and community organizations in Chicago, Jackson and Phoenix. He currently sits on the member board of the Arizona Free Enterprise Club.