His father was Benjamin Balch (1688-1741) and Mary (Prentice) Balch (1679-1742) who were married in Cambridge.
Thomas Balch married Mary Sumner on Oct. 11, 1737 in Roxbury, Massachusetts. They had eight children, including Hannah Balch. Hannah later married Rev. Jabez Chickering who succeeded her father as pastor of the Dedham church.
Rev. Thomas Balch was graduated from Harvard in 1735 and became a minister of the Congregational Church. In 1736 he was ordained pastor of South Church, Dedham, MA. In the town records, it cites that "he was deservedly highly esteemed for he was a man of talents and intellectual attainments. He was orthodox and highly regarded as a preacher."
In 1744, he was a Chaplain in the Expedition against Cape Breton during the French and Indian War.
The Reverend Thomas Balch
the first minister in this place),
died Jan. 8th, 1774,
in the 63rd year of his age
& the 38th of his ministry.