help regarding the history of AJS motorcycles

[Tim Gay.]

My mother was born in Blackburn but when her father died she moved to Wolverhampton due to one of her brothers was one of the founder members of AJS motorcycles in Wolverhampton.
After the company folded, she did hold shares in the remaining company which I believed made screws and rivets. Has anyone any information or idea as to whether this is true and how can I find out who my uncle was?
Many thanks