Help With Grammar Please!

[Khandro]

I'm writing an article for publication and I've written;
"........and we discussed the Italians who meant so much to him; Marini, Giacometti, Rosso, Manzù......"

Should it be who or whom please? My brain is in meltdown.

[DaisyNonna]

who, subject of meant.

[boxtops]

Who - definitely, in your context

of whom
by whom
with whom

[Khandro]

Thanks,Daisy and boxy . Which would you consider the most elegant for a title?;
Joe bloggs, a Memoir.
Joe Bloggs - a Memoir.
Joe Bloggs; a Memoir.
or something else?

[humbersloop]

who

[Nibble]

I'd go for

Joe Bloggs, A Memoir

[factor-fiction]

Yes it's a subject/object thing.
I don't think I ever use the word WHOM now- it's use is disappearing and I know some here will disagree but I think many people would say it sounds a little pretentious.

[pixie373]

Who
Joe Bloggs - a Memoir