I have not read where any of them were known to have voted.
Now then... back to my question which you purposefully avoided answering...
Have you found even one illegal alien who voted in California?
It is, of course, a stupid question. If I answered I had found one or ten or a hundred it would prove nothing. The real issue is whether Trump was right in claiming 3,000,000 illegals voted, and there is evidence that gives credibility to that claim. When Trump claimed he would win the nomination, his critics said, ridiculous! When he claimed he would win the general election, his critics said, ridiculous! When Trump claimed he would win the general election by winning blue states like Wisconsin, Michigan and Pennsylvania, as well as all the purple states, his critics said, ridiculous! Now, when Trump claims 3,000,000 illegals voted for Clinton, you continue to say, ridiculous, so a statistical analysis suggests your objection to Trump's claim actually gives credibility to it.
The real question is, why would you object to investigating Trump's claim by a hand recount of the California vote unless after having been so wrong for so long in your assessments of Trump's claims you've lost confidence in your ability to assess them?