How many blouse makers were there on the island of Manhattan during the triangle fire?

During the Triangle Shirtwaist Factory fire in 1911, there were approximately 500 blouse makers working in the factory itself, which was located in Manhattan. However, the garment industry in New York City at that time employed tens of thousands of workers, with many of them being women who worked in various factories across the city. The Triangle fire highlighted the unsafe working conditions prevalent in the industry, leading to significant reforms in labor laws.