I have some info on Harry William (there's quite a lot).
James Christian Thomas Chesterman (b. abt 1804 in Saint Sidwells, Exeter, Devon, UK (or possibly Ide, Devon, UK), married Johanah Barret (b. abt 23rd September 1804 in Saint Davids, Exeter, Devon,UK, was a householder) on 4th April 1825 at Tiverton, Devon, UK. Was a carpenter/builder. Lived at Hancock or Heacock Court, Sidwell Street, Saint Sidwell, Exeter, devon, UK. In 1881 was living with his son James and James' family at 1 Wilson Street, Saint Pauls, Deptford, Kent, UK. He is a widower at this time.),had following children:-
- Mary Day Chesterman b. abt 1825 in Exeter, Devon, UK. Was christened 27th December 1825 in Saint sidwell, Exeter, Devon, UK.
- Ann Joanna Chesterman b. abt 1828 in Exeter, Devon, UK.Was christened 6th January 1828 at Saint Sidwell, Exeter, Devon, UK. Married ??? Plackett and had following children:- Emeline, Ann Johanne, William Chesterman, Sarah Jane, Charles Chesterman, Henry Frederick, Edward Walter, Charlotte Ellen. FURTHER INFO AVAILABLE
- William Hugh Henry Chesterman b. in 1829 in Lester, UK?? or Exeter, Devon, UK. Christened 6th January 1829 at Saint Sidwell, Exeter, Devon, UK. d. 8th May 1860 at Clunes, Victoria, Australia. Had following children:- Amelia, Charlotte, Hannah, Isabella, Jane, Sarah Jane, William. FURTHER INFO AVAILABLE
- James William Chesterman b. abt 1831 in Exeter, Devon, UK. Christened 10th January 1831 at Saint Sidwell, Exeter, devon, UK. Married Maria R ??? (divorced/widowed??), and Sophia ??? and had following children:- Johanah, Maria W, James, Mary W, Harry Charles. FURTHER INFO AVAILABLE
- Charlotte Jane Chesterman b. abt 1832 at Exeter, Devon, UK Christened 1st july 1832 at Saint Sidwell, Exeter, Devon, UK.
- John William James Chesterman b. abt 1835 Christened 29th december 1835 at Saint Sidwell, Exeter, Devon, UK.
- Charles Chesterman b. abt 1839
- Emeline Chesterman b. abt 1841
- Harry Chesterman b. 10th July 1845 in Saint Sidwell, Exeter, Devon, UK. Baptised 30th January 1846 at Saint Sidwells. Married to Annie Truman Tuckett (Annie died when Harry was 5 yrs old, Harry then taken and raised by father and his 2nd wife). Had son Harry William christened 11th October 1868 at St Pauls, Deptford, Kent, UK. Died in England (no date). Harry William married Lillian Jayter and had children Harry (married Alice ??? no children recorded)and Queenie (married ?? Morris and had sons Brian and James).
Harry Chesterman senior went on to marry Eliza Mary Susannah Tidy and have following children:- Annie Gertrude, nellie, Lilian May, Harry W, George Edward, Helana M, Florence, Charles Thomas. FURTHER INFO AVAILABLE
Hope this is of some use,