He was a minister for three years at the Dwight Place Church in New Haven, Connecticut. On July 4, 1884, he delivered an oration on the occasion of the hundredth anniversary of the town.[10]
In 1884, he resigned unexpectedly, after some gossiping members of his congregations ("without standing or influence") had apparently complained about him. The New York Times later reported that Blaine's campaign was behind the gossip. The congregation was, according to the papers, moved to tears when Bacon, who was described as "young, talented, eloquent, and popular," read his resignation letter. There were hints of an investigation, and the possible "disciplining [of] certain folks whose too freely wagging tongues have brought about the trouble."[12]
After his church career in New Haven was ended, he devoted himself to literary pursuits,[2] publishing in the New Englander[13][14] and serving as that magazine's associate editor from 1886 to 1887; he also edited the New Haven Morning News, from 1884[8] to 1887.
In June 1887, his brother Edward died in Santa Clara County, California,[15] and in that same year (until 1890) Thomas took up the ministry of the First Congregational Church in Berkeley,[1] where Edward had also, briefly, been a minister.[15] In 1888, he became an instructor in the history department at the University of California, and from 1890 to 1895 was a professor in European history. In 1895, he was promoted to full professor in Modern European History, a position he held—in worsening health—until his death in 1913.[1]
^National Council of the Congregational Churches of the United States. Publishing Committee (1880). The Congregational year-book. Vol. 2. Congregational Pub. Society. p. 62. Retrieved 2 March 2010.
^"Some Hit and Miss Chat; Stray Bits of Gossip from an Observer's Note Book. A Dream's Strange Sequel--one of Leonard Bacon's Sons--Clevelands of the Last Century". The New York Times. September 7, 1885.