The record series RS555 Provincial Secretary: Immigration Administration Records provides a wealth of resources to those interested in examining the evolution and impact of immigration to New Brunswick. Documenting the growth of emigration to New Brunswick, alongside the Province’s responses to the challenges brought on by this change, the series offers invaluable insight into emigration to New Brunswick’s main ports of entry, including Saint John, St. Andrews, Miramichi, Bathurst, Shippegan, Dalhousie, and the Westmorland and Kent regions. It also documents emigration to York and Victoria County, immigrant societies and associations, and passage brokers and shipping agents. Together these records present a record of the immigration commissioners and agents’ activities, as well as their insights into the state of emigration and immigrants. These varied perspectives and accounts reveal the shaping force of emigration on New Brunswick.