This book would not have been possible without the support of Gordon Darroch of York University. He provided me with the Canadian Historical Mobility Project data, supported and encouraged my work, and made many useful comments and suggestions on this draft.
I am also indebted to Jim Moore and Jean Burnet. Ann Sorenson and Olga Fraser provided valuable consultation on statistical matters. Margaret Currie and Elaine Goettler made the 1871 Census volumes and other reference material readily available. Joe Lim provided valuable technical assistance and expertise on computer equipment and software. Kim Hall, Luke Pereira, Dawn Scovell, and Sherrilyn Sklar provided excellent research assistance.
My gratitude is also extended to my parents, Ernest and Olive Bridger, and to my children Catharine and Michael. Their support has been appreciated.
To Warren E. Kalbach, my husband and colleague, I express my gratitude for a deep and lasting influence. This is for him.