Complex sentence: Serafino Romualdi (18 November 1900--November 1967), an Italian writer and labor unionist, was an official with United States unions and labor federations in their work in Central and South America.
Split into simpler sentences: Serafino Romualdi (18 November 1900--November 1967) was an Italian writer and labor unionist. He was an official with United States unions and labor federations in their work in Central and South America.