does anybody know where I can find a passenger list of the white star queen mary sailing from New York to Southampton on May 25 but dont know the year. Thanks
Well no they don't seem to be covered by data protection. A lot of the ancestry sites offer a look up of passenger lists west bound so you can check how your ancestors arrived in the US of A. This as late as the 1930s, which I assume is the period OP is interested in as he mentions White Star rather than Cunard..
Eastbound may be more problematic, online anyway.
There are some for sale on e-bay, not for the date quoted though - maybe put a wanted ad there?