Abstract copyright UK Data Service and data collection copyright owner.This is a qualitative data collection. Patterns of migration and changing gender relations are reshaping fatherhood across family and historical generations. This is a study of two under researched groups who migrated in different historical periods - first generation Polish families and second generation Irish families. It also includes white British families. This comparative study focuses on fatherhood in 30 chains of biologically related men: grandfathers who form the oldest generation, fathers who form the middle generation, and sons aged 5 to 18 who form the youngest generation. The data collection addresses a number of key research questions: how do men from dif...