More information on some of the people mentioned above has been found;
Dixon was born around 1781 in Birmingham and lived at Huntley Lane, Aston. On the 1841 UK Census he said he was a silversmith but by 1851 he called himself a plated wares manufacturer.
He died in 1860.
Pritchard was born around 1798 in Birmingham and lived in Regents Place, Birmingham in 1841 and said he was a jeweller and in 1851 a master jeweller employing 18 people.
Census websites give no detail for him after 1851.
Goold was born in Surrey around 1816.
In 1851 he lived at 41 Caroline Street, Aston, near Birmingham and said he was a master jeweller employing 7 people.
In 1861 he was living in Victoria Road, Aston and said he was a jeweller.
He was absent from the family home at 1 Heathfield Road Aston Villa for the 1871 Census where his wife recorded he was a traveller.
His first wife Catharine Sarah died in 1874. He remarried in 1881
He reappeared on the 1881 Census at 57, Claremont Road, West Ham, Essex as a jeweller; again he was a widower,
He was at Milverton House, Knowle, near Solihull, Warwickshire in 1891 and 1901 living on his own means. he had remarried again.
He died in 1904.
Hickman was born in Warwickshire around 1781.
In 1841 he lived at Warstone Lane, Birmingham and said he was a jeweller.
The death of a Josiah Hickman is recorded in Birmingham in 1851.
Prime was born in Worcestershire around 1797.
In 1851 he lived at 145, Villa Road, Handsworth near Birmingham and said he was a manufacturer of plate.
At the same address in 1861 he said he was a silversmith and electroplate manufacturer employing 44 people
He died in 1881.
Spurrier was born in Edgbaston near Birmingham around 1781.
In 1841 he lived at Bristol Road Mill Edgbaston and said he was a silver roller.
In 1851 at 56 Belgrave Street Kings Norton near Birmingham he said he was a retired metal roller.
It isn’t possible to positively identify him on the 1861 Census.
He appears to have died in 1866.
Reading was born in Birmingham around 1811.
In 1841 he lived in Upper Hospital Street Birmingham but the Census record of his employment is unreadable.
In 1851 he lived in Harbourne Heath Road, Harbourne, near Birmingham and said he was a machinist.
In 1861 he was at 83, Spencer Street, Birmingham, a jeweller employing 8 people.
In 1871 he lived in Moor Pool Lane, Heath Road, Harbourne and was still a jeweller.
At the same address in 1881 he said he had retired.
He died in 1886.
Hall was born around 1830 in Birmingham
In 1851 he lived at the second house number 4 Couch (that’s what it appears to say!) and said he was a jeweller.
In 1861-1881 he was at 6, Augusta Street, Birmingham and was still a jeweller. The 1861 record names him as Hurbert.
He died in 1888.