If the Susanna living with Joseph and Maria was listed as daughter then the Susanna whom Tids received the birth certificate for was definitely a second Susanna. Possibly related to the Susannah who was with Joseph and Maria in 1851, but maybe not.
I found Joseph and his first wife Elizabeth in 1841 and they had a baby - Susannah with them.
Possibly Richard was the brother or cousin of Joseph Bisby. There is a Richard and Susanna Bisby in the 1861 and 1871 Wolverhampton Census but in both those census records Richard's birthplace is given as Gibraltar.
A look up for a Richard and Susanna Bisbey/Bisby in Warwickshire 1851 might throw some light on the situation. It would seem likely that Joseph and Richard were brothers as they both married in the same church within a few years of each other. (Richard's mariage to Susanna and Joseph's to his first wife Elizabeth). But if Richard was born in Gibraltar then..... well that probably would mean they were unrelated..... unless Gibraltar is a liittle know Warickshire parish that has passed me by!
Caro