Vivienne said she could not find how the two seperate firms/families were related, they did know each other and attended each others family occasions etc. The Trulock bros firm ended in 1910 or shortly afterwards when Richard (Dick) Trulock, the last brother alive, took a revolver out of a case in the shop in Parliament street and sadly shot himself.
Vivienne had just given birth when i was talking to her, and i didn't want to pester her too much. I was trying to find out if any records of the guns made still existed , but it appears they do not.