Scotland has higher rates of mortality compared to the rest of the UK. Also premature mortality in Glasgow is 30% higher than in Liverpool and Manchester, with deaths at all ages around 15% higher. This excess is observed across almost all age groups, both males and females. In recent analyses reciprocity, trust, volunteering and religious affiliation including proxies for social capital of religious participation has been shown to be an important catalyst for social connectivity among some populations, and has been shown to be associated with lower mortality. This research combines the ONS Longitudinal Study of England and Wales with the Scottish Longitudinal Study to examine whether levels of ‘excess’ mortality in Scotland (compared to E&W) and Glasgow (compared to Liverpool/Manchester) are modified by the existence of social supports in peoples lives such as through practicing religion and living arrangements. We look at all-cause mortality by various age ranges including all age and 35 to 74. Poisson regressions are used along with a pioneering application of eDataSHIELD to undertake analysis on two restricted access datasets. The findings show that indicators of social support moderate mortality but that mortality in Scotland remains above that of England and Wales.