Barnet Henry Joseph was born in Penzance, England in 1837. His father was Henry Joseph & his mother was Amelia Emily Joseph. Barnet married Isabelle Blanckensee, who was the daughter of the well known jeweller Solomon Blanckensee and Julia Joseph. In 1865 this manufacturing and wholesale jewellers was founded by Barnet Henry Joseph and his brother Henry Joseph. The site they occupied was set in the heart of the Birmingham Jewellery Quarter. The address of the manufacturing premises is listed as 18, 19 & 20 Frederick Street.