De
your accumulation of Books and magazines make mine look lile less than an anthill..
You will spend the remainder of your life cataloging those things! 
I thiknk the difference is that I only buy things that I have acute interest in and on very limited areas of interest. I also am very particular about authors and credentials.
For example, I would not walk acrosee the road from my house to the other driveway to look at or read anything Brian Kilmeade takes credit for regarding Civial War events. He is simply rehashing what has already been written long before he came along by smarter and better authors than him.. To me, it comes just shy of plagiarism.
Of course I have my Theological library as well as American History with a collection on Civil War as a separate group. WW2 is another thing I keen interest in .
So my mind is likely not as open as yours but its good to know there are other bookworms around!! 
Best wishes to you on this monumental task you have undertaken!
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It's the magazines that are throwing my guess off. Lots of SF magazines and they don't take much space. I've got magazines with stories by H.G. Wells. Others by a very young James Thurber. They're cool but... there sure are a lot of 'em. The oldest was probably a copy of The Atlantic from 1895.