1 & 3 look mergeable:

http://www.hkmdb.com/db/people/view.mhtml?id=1162&display_set=eng
http://www.hkmdb.com/db/people/view.mhtml?id=1221&display_set=eng

I'll buy that 2 is somebody else though

Also some empty people:

http://www.hkmdb.com/db/people/view.mhtml?id=10593&display_set=eng
http://www.hkmdb.com/db/people/view.mhtml?id=16330&display_set=eng

And another probable merge:

http://www.hkmdb.com/db/people/view.mhtml?id=5064&display_set=eng
http://www.hkmdb.com/db/people/view.mhtml?id=7204&display_set=eng

MrBooth wrote:1 & 3 look mergeable:

http://www.hkmdb.com/db/people/view.mhtml?id=1162&display_set=eng
http://www.hkmdb.com/db/people/view.mhtml?id=1221&display_set=eng

You're treading on dangerous waters there (to mix a metaphor or two). There are a seriously large number of suspicious probable duplications amongst the really old movie pages. Once you start, you may never get out alive ...........

I know! I try to point them out when I come across them... and leave it up to somebody else to decide if they actually be merged