Urgent grammar advice needed- who/whom

[ScummyMummy]

Can someone explain this for me please- completely forgotten if I ever knew and the more I consider it the more confused I become.

Is it grammatically correct to say:
"two people, one of whom has blah blah and the other of whom has blink blink" or should I use "who"?

V grateful for any quick answers!

whom

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I think it's 'whom'.... but can't be sure.

Thanks you guys- I'll go with whom then

pretty sure it's "whom".

Definitely whom

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There's a test to check which it should be here!

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Scummy - I look here if in doubt - quite good The Blue Book of Grammar (or something like that)

you iz lookin' for expression wot 'as