4src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2221861/fullThe boys who fight for freedom1916, copyright 1917Berry, BertCSM-BERBOY1916-0017729391379790src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2227735/fullGood-bye sweetheart1916Berry, BertCSM-BERGOO1916-0017731514382288src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2223699/fullOut there : song1918Berry, BertCSM-BEROUT1918-0017729402379801src: https://digitalarchive.tpl.ca/internal/media/dispatcher/2223702/fullOut there : song1918Berry, BertCSM-BEROUT1918-0027729405379804