
A quick search of the IGI suggests that the deceased was probably William Frank Alliston, Christened at Blandford on 31 July 1842, the son of Robert and Charlotte; and who married, at Buckland Newton on 2 July 1863, Sarah Kingman. This family, with daughter Mary Charlotte Alliston, appears on the 1881 census at Northwood on the Isle of Wight, which may indicate that the vessel aboard which William met his fate sailed from Portsmouth or Southampton.
SOURCES: Deaths, Book 14, P. 182, a copy of which is in the Arxiu Històric d'Eivissa; IGI, at www.familysearch.org.