From the LAC website:
Sub-series consists of juvenile inspection report cards created by Immigration officials as they carried out regular inspection of children brought to Canada by various organizations. The inspections were conducted by departmental inspectors or individuals designated by them, such as local ministers. The eight reels in this sub-series consist of inspection report cards arranged in alphabetical order by child's surname. Most of the cards date from 1920 to 1932, with a few as early as 1913. Each card includes the following information: name, age or date of birth, date of arrival, name of ship, name of Home/Union, dates and results of inspections, and name and address of employer(s). Many of the cards include informative follow-up comments. Most of the children were sent to Canada by organizations in Great Britain, such as Barnardo's, Middlemore, Quarrier's, the Salvation Army, the Catholic Emigration Association and the British Immigration and Colonization Association. There are also inspection cards for European children, including those brought to Canada by the Armenian Relief Association of Canada and the Canadian Jewish War Orphans Committee.
Here is the breakdown of the microfilms:
T-15420 A to CARDNO, Leslie
T-15421 CARDWELL, Andrew to EVANS, Arthur E.
T-15422 EVANS, Arthur L. to HENDERSON, Ann F.
, Charles H. to LOCK, Annie HENDERSON
T-15424 LOCK, Herbert to O'BRIEN, Samuel
T-15425 O'BRIEN, Thomas to SHAW, Victor
T-15426 SHAW, Walter A. to WEALE, Walter
T-15427 WEALLS, Eric to ZYCZYNSKI, Leon
The microfilms are available through the inter-library loan system.