This paper examines the discrepancies between phases of research into an emerging small-scale ethnic group in the UK. Whilst top level indications using large-scale survey data produced sociologically relevant findings about the group it was not until the analysis of subsequent qualitative interview data that a more comprehensive picture emerged. Links between ethnicity and social exclusion are demonstrably strong, particularly in areas of disadvantage (Sanchez-Perez, Morales and Jansa, 2005) and the Cornish potentially represent just such a case. Initial quantitative analyses of primary and secondary survey data indicated little significant link between ethnic group affiliation and social exclusion factors. However a more interesting discrepancy between the belief of exclusion and the reality emerged during a stage of qualitative interviews. This paper contributes to the literature critical of methodological exclusivism and towards triangulated, mixed methodologies.