Dear Maria, These are the births I found but I suspect that you might already have them. Elijah Olive District Manchester Vol 8d Page 344 Jan Quarter 1872 Emily Olive Disrtict Manchester Vol 8d Page 346 Dec Quarter 1873 George Olive District Prestwich Vol 8d Page 382 Dec Quarter 1875 Francis Olive District Prestwich Vol 8d Page 373 June Quarter 1879 By the way Eliza's mother's name is Lydia and the marriage  and births are on the LDS site www.familysearch.org You will see that Eliza was born Derbyshire not Wiltshire Iwould not be able to find John Henry's children on the census because they were born after 1871 and left for Australia before 1881 Hope this helps Jean