This chapter analyses Ireland’s limited success in mobilising its diaspora in the United States as a market for Irish goods during the mid-twentieth century. Despite efforts by politicians such as Seán Lemass and William Norton, who recognised the potential economic power of the Irish-American community, structural and cultural obstacles hindered trade expansion. Attempts to encourage diaspora-led consumer support were met with enthusiasm but lacked follow-through due to the narrow range of export-ready Irish products, underdeveloped marketing strategies, and weak industrial capacity. While certain companies, such as Gateaux Ltd., saw some success, most Irish firms failed to adapt to the quality standards and expectations of the US market. Government-backed efforts to establish trade organisations and export strategies—such as the Ireland-America Council and the Irish Chamber of Commerce in New York—struggled due to lack of support, coordination, and risk tolerance among Irish entrepreneurs. American consultants’ reports painted a harsh picture of an inward-looking economy marked by conservatism, family-dominated firms, and resistance to modernisation. Ultimately, despite the diaspora’s goodwill, the chapter concludes that Ireland’s failure to capitalise on this market reflected broader issues: a preference for security and stability over ambition and innovation, institutional inertia, and insufficient political will to transform sentiment into sustainable economic opportunity.