Question

Which do I use whom/who.
I am typing an affidavitt, I am stating someone is deceased.
John Doe, whom/who deceased May 15, 2008, whom/who had the following three childre.....

Answer 1

P.S. When John Doe is the subject, WHO is deceased, etc.

Sra

Answer 2

Your sentence should read, "John Doe, who died on May 15, 2008, and who had the following three childre..... "

In both cases, "who" is the subject of its own clause. The subject form of the word is "who." (The object form of the word is "whom.")