trade Unions and the Catholic Church Gerry O'Shea In the early 20th century, the Catholic church was strongly in favor of the development of trade unions, a major controversial public issue at that time. Pope Leo's encyclical Rerum Novarum, which was promulgated in 1891, vigorously promoted the right of workers to organize and negotiate their wages and terms of employment. Employers used every trick in the book - fair and foul - to prevent workers from having an organized voice. Employees often looked to Rome for support, and every pope since Leo has affirmed that workers have a clear moral right to union representation. Mike Quill, the outstanding Kerry man who founded the Transport Workers' Union with help from the Communist Party in the 1930's, laced his speeches with references to papal statements of support for workers' rights. Pope Francis has confronted the conservative argument that the be...