As a career newsman described as a "short, rotund powerhouse",[1] he died holding the posts of president of Dow Jones and de facto manager of The Wall Street Journal.

[3] Under Barron, The Wall Street Journal gained new printing presses and expanded reporting staff, with circulation increasing from 7,000 in 1912 to over 18,000 in 1920 to beyond 50,000 by 1930.

[3] In 1913, he gave testimony to the Massachusetts Public Service Commission regarding a slush fund held by the New Haven Railroad.

Mr. and Mrs. Barron and the Endicotts are buried in a joint family plot at the historic Forest Hills Cemetery in the Jamaica Plain neighborhood of Boston.

[2] After his death, Barron's responsibilities were split between his son-in-law Hugh Bancroft, who became president of Dow Jones, and his friend Kenneth C. Hogate, who became the managing editor of the Journal.

The Bancroft family remained the majority shareholder of Dow Jones & Company until July 31, 2007, when Rupert Murdoch's News Corp. won the support of 32 percent of the Dow Jones voting shares controlled by the Bancroft family, enough to ensure a comfortable margin of victory.