Corfield, W. H. Sewerage and Sewage Utilization Corfield, William Henry Sewerage and Sewage Utilization Corfield, W. H. Water and Water Supply Corfield, William Henry Sewerage and Sewage Utilization Corfield, Vera Kilian An Analysis of the Social Characteristics Associated With University Attendance in the Province of Alberta, 1921-1961 Corfield, W. H. Water and Water Supply