148 That this may happily come to pass, to all of you, Venerable Brethren and Beloved Children, who are members of the vast Catholic family entrusted to Us, but with the especial affection of Our heart to workers and to all others engaged in manual occupations, committed to us more urgently by Divine Providence, and to Christian employers and managements, with paternal love We impart the Apostolic Benediction.
Source: Quadragesimo Anno (Vatican.va)