Ralph Nader's middle name?

I’m working on a project where I need the basic biographical info about the presidential candidates… but I can’t seem to find Ralph Nader’s middle name anywhere on the Web. Does he, perhaps, not have one?

I always hear him referred to as Ralph “Ratf*ck” Nader but that’s probably not the middle name his mama gave him…

Hmmm, even the bio on his home page and the first chapter of his book don’t mention a middle name. I’m betting he doesn’t have one.

I do like this quote that came up when I googled “Nader middle name”:

source page

The biographical sources I checked, including “Who’s Who” don’t list a middle name for Nader.