Jenny,
The 1861 census for Thomas Bowell has his birthplace as St Helena. I have no doubt. Clearly he was actually born in Hanley, Staffs as in the 1851 census. Presumably the 1861 enumerator could not read his own shorthand when he transferred the record. Note that at the time of the census in 1861 the island of St Helena was very much in the newspapers reporting the final transfer in Paris of the remains of Napoleon Bonaparte to his magnificent tomb in Les Invalides following the return of those remains from the S Atlantic island of St Helena 20 years before.
The enumerator must have made a strange connection in his mind.
Dave
Dave, I'm sure your right about the spurious mention of St Helena but it did catch my eye because of a man who is buried in Walkley Cemetery.
Cornelius Valentine Clifford is described on his gravestone as 'A native of St Helena, Africa'. He and a brother both served for a few years in the Royal Navy and his brother is described on a statement of his services as 'a man of colour'. When their father was baptised on St Helena in 1844 he was described as an 'emancipated African'.
While researching these people I discovered a lot of parish registers for the island at the University of Witwatersrand.