Conversation so far:
How did James Black's partnership with William Shaw start?
During his travels, James Black had befriended Elijah Stuart. Stuart opened a tavern at Washington and Black was hired by a local blacksmith named William Shaw.
Did James Black and William Shaw have a great partnership?
James Black would go on to create some of the world's finest knives, but Black fell in love with his partner's daughter, Anne Shaw, and was forced out of the partnership.
Over time did James Black's partnership with William Shaw become famous?
Did James Black have many customers?
Are there other important aspects to this partnership between James Black and William Shaw?
James Black fell in love with his partner's daughter, Anne Shaw, and was forced out of the partnership when Shaw would not allow the marriage.

Question: How long were they married?
Self-contained rewrite: How long were James Blake and Anne Shaw married?