James Trebilcock was born in Perranzabuloe, Cornwall, England on 24 April 1864. His parents were James and Jane Trebilcock, nee Mitchell. His marriage to Mary Martha Pearce was registered in St. Columb, Cornwall, England during the fourth quarter of 1891.
Remark: We assume the couple was childless.

Wills and Administrations, 1929
Trebilcock, James, of Smyrna Bay View-terrace, Newquay, Cornwall, died 13 October 1928.
Administration Bodmin 03 January to Mary Martha Trebilcock, widow.    Effects £710.

Fanny Carlyon Trebilcock, nee White, was born in Helston, Cornwall, England on 14 June 1849. She was married to John Trebilcock in Saint Gluvias, Cornwall, England on 02 January 1873. She died at Manchester Avenue in St. Louis, Missouri, USA on 14 April 1902. She was interred in the cemetery of Affton, Co. St. Louis, Missouri, USA on 18 April 1902.

John Trebilcock (Fanny's husband) was born in Saint Gluvias, Cornwall, England on 18 September 1847. He emigrated into the USA in 1883. He died in Eadle, Co. St. Louis, Missouri, USA on 07 April 1908 and was interred in the cemetery of Affton, Co. St. Louis, Missouri, USA on 11 April 1908. He was suffering from Senility and housed in the Insane Asylum in Eadle.

John Trebilcock (The son) was born in Saint Gluvias, Cornwall, England on 28 October 1874 and was baptised in Saint Gluvias, Cornwall, England on 28 March 1875. As recorded in the 1900 US Census was he married to Louise Bayer abt. 1898. The couple also resided in St. Louis. He died in St. Louis, Missouri, USA and was interred in the Calvary Cemetery in St, Louis on 21 November 1949.

Jane Trebilcock was born in Saint Gluvias, Cornwall, England on 17 June 1873 and was baptised in Saint Gluvias, Cornwall, England on 07 September 1873. She died in St. Louis, Missouri, USA on 20 March 1940 and was interred in the cemetery of Affton, Co. St. Louis, Missouri, USA on 24 March 1940.

Frederick James Trebilcock (Freddy) was born in Saint Gluvias, Cornwall, England on 23 December 1875 and was baptised in Saint Gluvias, Cornwall, England on 16 April 1876. He was married to Florence C. Franz in St. Louis, Missouri, USA on 02 September 1922. The couple also resided in St. Louis. He died in St. Louis, Missouri, USA on 22 January 1932 and was interred in the cemetery of Affton, Co. St. Louis, Missouri, USA on 25 January 1932.

Emily Trebilcock was born in Saint Gluvias, Cornwall, England abt. 1877 and was baptised in Saint Gluvias, Cornwall, England on 05 August 1877. She was the wife of John Grammer Warrington. The couple also resided in St. Louis. She died in St. Louis, Missouri, USA in 1940 and was interred on 13 April 1940.

William Trebilcock was born in Saint Gluvias, Cornwall, England on 28 January 1882. He was married to Emily De Runtz abt. 1905. The couple resided in Saint Ferdinand, Co. St. Louis, Missouri, USA. He died in St. Louis, Missouri, USA on 22 December 1944 and was interred in St. Louis, Missouri, USA on 26 December 1944.