Niagara, Ontario :
169th Overseas Bn., 'A' Co., C.E.F., 1916.

These two photos are of the same Battalion, but arranged in a different place. The same three men are at the far right in the back row, but others are placed differently. Only the top photo has information written on the print, so the the bottom photo may have been rejected – possibly because the officers were not in the front row.