From the Ottawa Citizen in 1946:
Stowaway Total Jumps To Seven
HALIFAX, May 28 - (CP) - With the stowaway total jumped to an unofficial seven, all were believed accounted for and still aboard the Queen Mary today when the giant liner sailed for New York to complete her Atlantic crossing.
Special guards, posted right up to sailing time, were said to have uncovered two more unofficial travelers - both men- during the 24-hour stop here. Four men and a woman "about 30" were reported to have been flushed out from hiding places en route." [sic]
All will be taken back to Britain after the Queen Mary discharges some 500 remaining civilian passengers in New York and picks up a return load, ship's officers said.