Born 14 Aug 1829 from USA records, and that gives him as son of George Blong and Mary Holmes. In the same town in Ohio a George H Blong was given as born 1834 in Ireland and aged 26 in Hamilton, Ohio in 1860 census.
Thomas Blong emigrated to Cincinnati, from Portarlington in 1855. He is cited as the oldest living butcher in Ohio in 1912. His wife Sarah died in USA in 1906, and she was born in Ireland in 1828.
Thomas Blong marriage to Sarah Jane Williams on 13 Feb 1856, Hamilton, Ohio source code, 5-P-L (1850-59)
Had a son Thomas there, who was born in Camp Washington, Hamilton County, Ohio in April 1857. They also had Ella J Blong (Charles Franklin Locke, received his early education in the public schools and Woodward High School, was graduated from the Ohio Medical College in 1876, and is now engaged in the practice of his profession in Cincinnati; he married Ella, daughter of Thomas Blong, a stock merchant of Warren county, Ohio.) and Anna M Blong as daughters in 1880 census in Ohio
He may have had a daughter Charlotte Blong who claimed back in Ireland to be married to Paris Singer, the sewing machine heir. This was cited by Jack Smallhorn, but appears to be untrue.