I'm looking for any information about Marie Theresa (Maria Teresa) Gray a.k.a. Bonnie Balfe Gray. She was born in Dublin in 1838, and was a niece of Michael William Balfe, the Irish composer. She married William Edgar Gray in London on 4th January, 1877. William was born in Shelburne Falls, Mass., on 10th January, 1845 ; established a banking business in New York in 1867 ; went to London in 1870. He was a notorious fraudster -- "The Prince of Forgers". He had a number of aliases : Dr. Georgius Colletso (Collizo/Coletzo), and James Payne Morgan, among others. He was wanted in the U.S. for a series of frauds & forgeries related to mining shares. A warrant for his extradition to the U.S. was issued, and he was extradited, arriving in New York on the steamship Nevada on 10th July, 1878. He was sentenced to 10 years in prison in May 1879, but released in June, 1881. I presume Maria Teresa went to New York with him, but can find no details. They had one child, Ella Balfe Gray (born in 1877 in London ; died 18th December, 1881 in Manhattan ; reinterred in Oakhill cemetery, Washington, on 28th November, 1884). Marie Theresa died in 1893 (possibly in London). Both Maria Teresa and her daughter, Ella Balfe Gray, are buried in the same grave as Mary Jane Gray (nee Rice, mother of William Edgar) and Mary Ella Gray (sister of William Edgar) in Oakfield cemetery, Washington. Any help or leads gratefully received. George