In the 1891 census of Canada Chambly, St. Lambert, Quebec
Head James P. Sudbury, age 39, born England, parents born England, Church of England, Insurance Manager
Wife Kathrine Sudbury, age 31 [doesn’t match the 1881 census], born England, parents born England
Lodger Eliza Jane Baldock, age 25, born England, parents born England
Daughter Jennie K Sudbury, age 13, born England
Son Edward B. Sudbury, age 10, born England
Son Wilfred James Sudbury, age 7, born Quebec
Daughter Hilda M. G. Sudbury, age 4, born Quebec

In the 1901 census of Canada Chambly and Vercheres, Saint-Lambert, Quebec
Head John P. Sudbury, born April 23 1852, England, age 48, immigrated 1882, insurance agent
Wife Catherine Sudbury, born December 2 1858, England, age 42, immigrated 1882
Son Wilfred J. Sudbury born April 19 1883, Quebec Province, age 17
Daughter Mildred Sudbury, born November 9 1894, Quebec Province, age 6
Daughter Sybil Sudbury, born January 10 1892, Quebec Province, age 9