Am still in a tangle with this.
With your help I have progressed a bit and confirmed that William Winterman Hornsbury married firstly Mary Johnson Ship on 9 May 1831 and thereafter Mary Reeves (née Wells) in 1852 in Brighton.
No apparent children from marriage to Mary Reeves but 3 from first marriage to Mary Ship: Emma Eliza 1831, William 1834 & James 1840 (he was registered in Dover with mmn Ship) which is feasible as William's father James Holloway Goodwin - that's another story as to how they became Hornsberry's - hailed from Dover so am happy with that.
I have also found the baptism of a Sarah Hornsbury on 9 April 1847 at St. Nicholas, Brighton but to a William & Jane Hornsberry. Who was Jane? Another wife?
I am assuming that William was at sea for both the 1841 & 1851 censuses and on that naval merchant seaman record he states that his home address was Air Street, Brighton when on shore. Several members of the Hollingsbury family lived in Air Street and in 1851 there are 2 grandchildren living with William's parents whom I had not yet attached to anyone as children. Rather conveniently their names are William & James, one born Dover, so think the fact that they are there confirms William's absence at sea.
However the 2 girls Emma Eliza (Emma was Mary Ship's mother's name so am happy that she is a child although she seems to be known as Eliza rather than Emma) and Sarah seem a bit interchangeable.
I can't find anything definite going forward for Emma Eliza. There is a marriage for Sarah Hornsbury in 1869 to James Harman, as found by Jon. However there is a marriage for a widowed Eliza Harman (father William Hornsbury fisherman Deceased) on 29 July 1873 to a James Jasper.
https://www.familysearch.org/ark:/61903/3:1:S3HY-6DSQ-GX7So who is Eliza Harman? Should be Eliza Hornsbury or Sarah Harman.
Any assistance on figuring this out would be gratefully received thanks.
Pheno