Pope Pius XI
Quadragesimo Anno §24
Quadragesimo Anno: On Reconstruction of the Social Order
24 From that time on, fuller means of livelihood have been more securely obtained; for not only did works of beneficence and charity begin to multiply at the urging of the Pontiff, but there have also been established everywhere new and continuously expanding organizations in which workers, draftsmen, farmers and employees of every kind, with the counsel of the Church and frequently under the leadership of her priests, give and receive mutual help and support.
Source: Quadragesimo Anno (Vatican.va)