Hubert is on http://ssdi.genealogy.rootsweb.com/cgi-bin/ssdi.cgihttp://ssdi.genealogy.rootsweb.com/cgi-bin/ssdi.cgi spelled "Hubert". $27 will get you his birth place and parents. Someone in Tampa might look up his obit for you if you know the exact day he died; if you try, post on the county page for whatever county Tampa is in.
That still doesn't get you his siblings, unless they are mentioned in the obit and someone gets it for you.
I have some arguments for and against asking people to e-mail you in a query board post on http://www.tedpack.org.goodpost.htmlhttp://www.tedpack.org.goodpost.html Most of them are against.