Workers were organized by their skill: carpenters, plumbers, bricklayers, each into their respective unions.
en.wikipedia.org Possession of craft skills, such as plumber, painter, electrician, roofer, mechanic or welder could save their lives.
en.wikipedia.org It's a less prestigious occupation than a specialist such as a plumber, electrician, or carpenter.
en.wikipedia.org A series of successful strikes swept the country, affecting textile workers, plumbers, bricklayers, stove molders, stonecutters, carpet weavers, shoemakers, glass molders and coal miners.
en.wikipedia.org This was achieved through the efforts of builders, plumbers, fundraisers and just plain labourers from within the club.
en.wikipedia.org