Hmmm, this is quite a tricky one Fiona in that without knowing for sure who Henry's parents are, we could be tracing completely the wrong family. I've looked at the marriage entry for Henry and Gwendoline and see that he doesn't appear to have a middle name (though of course this may not be correct). On that basis I have found a birth record as follows:
This appears to be the only entry (other than one more for a Henry Edward Bull) in Wiltshire in 1903.
I appreciate it would entail the cost of £7 but you may like to think about applying for a birth certificate as this should certainly give the details of Henry's parents - usually the father and his occupation and the mother including her maiden name.
I will leave you to consider this but in the meantime will certainly search to see if I can find any census entries that could possibly fit the occupation of sweep.
Sorry I can't be more helpful at this stage Fiona. I'll wait to hear from you.
Kay
Manager