Hello Mads,
I think that I may be able to help you with your research into your GG Grandfather Robert Francis Hodgson. I am also researching this family. According to my Records, his parents were Charles Hodgson and Sarah Barker. They had an enormous family (about 15 children) who were all rather successful for their time. Robert Francis (the youngest child in the family) had an older brother born in 1810, also called Robert Hodgson, funnily enough. This Robert is my GG grandfather. I don't know why they would have named two sons Robert, but possibly due to the large gap in their ages, the older Robert would have already have left home by the time the second one was born. These are the names of Charles Hodgson and Sarah Barker's children: Rachel Blanche Hodgson (1805-1889), Sarah Hodgson (1807-1885), Charles Francis Hodgson (1808-1882), Robert Hodgson (1810-1888), Joseph Barker Hodgson (1812-1873), William Hodgson (1814-1896), Maria Barbara Hodgson (1816-1887), Ann Hodgson (1817-1900), Elizabeth Hodgson (1818-?), Eliza Hodgson (1819-1891), Mary Hodgson (1819-?), Francis Hodgson (1820-?), Jane Hodgson* (1821-?), Theresa Jane Hodgson (1822-?), Edward Chapman Hodgson (1825-1896), Robert Francis Hodgson (1831-1874).
I am dead certain about 8 of these children, and fairly sure about 7 of them, but I am doubtful about Jane Hodgson being one of their children though, I believe her to be the second wife of Joseph Barker Hodgson, but I may be proved wrong in the future.
I have a great deal of information on who each of these children married and their descendants. These are the descendants I have for your GG grandfather Robert Francis Hodgson:
Interestingly, Robert Francis Hodgson died in the same year that his son Francis Joseph Hodgson was born. Because Francis Joseph was actually born at sea off Cape Horn, it is assumed that his father died after his birth. In the 1881 Census, Thurza, Robert's wife, is recorded as a Widow.
She had two children to raise, Mary Thurza and then Francis J Hodgson who by the age of 17 years in 1891, was recorded as being a Press Reader. It is interesting to note that he was born Off Cape Horn, Brit. Vessel. Robert's wife must have accompanied him on possibly his last voyage!
By 1901, Francis Joseph was married to Margaret and they had 2 children, Robert F Hodgson and Cyril A Hodgson. His occupation at this time was Bank Clerk. They were living at 126 Sandyford Road, Jesmond, Newcastle upon Tyne.
Mary Thurza married Charles E Reay, son of John Reay (1816-1902) and Jane Elliott (1834-1899).