Frederick William Heinke
Submarine engineer
c1852 Born in London son of John William Heinke
c.1870 Published "A History of Diving" based on his father's research and with notes by Frederick and W. G. Davis[1]
1871 Louisa Margaret Heinke 55, Frederick William Heinke 19, submarine engineer, Edwin Harry Alfred Heinke 13[2]
1871 Dissolution of the Partnership between Frederick William Heinke and John Davis, as Submarine Engineers, at No. 176, Great Dover-street, in the county of Surrey[3]
1873 Married Rubina Caroline Skeggs in Marylebone[4]
1875 A civil engineer at the baptism of their son John Leathart Heinke in Twickenham[5]
1877 A civil engineer at the baptism of their son Charles Cuthbert Stanley Heinke in Twickenham[6]
1877 Patent to Frederick William Heinke, of Twickenham, in the county of Middlesex, in respect of the invention of "improvements in the method of and apparatus for obtaining or producing electric light."[7]
1879 of Heinke and Davis went the partners were bankrupt
1880 A civil engineer at the baptism of their son Llewellyn Hubert Heinke in Twickenham[8]
c.1904 Emigrated to USA[9]
By 1908 Ruby C Heinke was the widow of Frederick; lived in USA[10]
By 1911 Rubina was a widow[11]