Haydn, Very many thanks for your reply and you make a convincing argument for Charles Akers/Hackers being one in the same person.
However, you have also raised a further query that has got me puzzled. I do not ever recall putting information re William Walker and Sarah West into the public domain, so can you please tell me where/how you managed to access this information.
In respect of William and Sarah, it is a long time since I first looked them up and it was not a line I was actively pursuing. The only record I have on file is a reference to their marriage in 1847, registered Uxbridge Middlesex. It may be that William married for a second time but I have no details. Also what is unusual is that I have no census records for them i.e. 1861/1871 and I cannot confirm Elizabeth Walkers birth.