My friend CrimsonSox found some wonderful images of H. Huntsman & Sons in 1957. Notice how all the tailors are sitting cross-legged on tables while they work. Tailors used to sit like this for hours, which is why so many came out of the trade with physical ailments. There’s actually a muscle in our body called the sartorius muscle, which runs down the length of our thigh. Sartorius comes from the Latin word sartor, meaning tailor, and it’s sometimes referred to as the tailor’s muscle.
There are a few theories for why this name was chosen. One is that it refers to how tailors used to sit cross-legged all day, like you see above.