The owner is a woman. What should I call her husband? Call teacher niang?

Master's husband, you can call him Master Zhang.

The teacher comes from Tai Ping Guang Ji (Volume 49) Dongyang Night Strange Green: "The teacher is the first friend." The abbot here still refers to the venerable old monk, and later he slowly used it to address the husband of the female teacher.

Some people think it can be called Shi Gong, which corresponds to Shi Mu, which is relatively neat and conforms to syntactic etiquette: cloud is against rain, snow is against wind, and Shi Mu is against Shi Gong. In fact, Master Gong means more, which can refer to the founder, cook, master or father of Buddhism, and some wizards. Therefore, it is more appropriate to use the word Master Gong to indicate that Li Shifu's husband is not a master.