From the IE as well.
Something to consider, and I'm not sure how they did it in the 50's, but in my home, built in the 70's there is a horizontal fire block (2x4) connected between the 16 inch studs.
So to get through that, I bought a drill bit, like this:
Milwaukee 1/2 in. x 72 in. Cable Bit-48-13-8350 - The Home Depot
They come in different lengths and widths.
Essential you'd use that to get down to a space in the wall where you want the cable to come out of, just make sure their isn't anything vital that you may hit in the wall, like gas, plumbing or electrical.
You'll then use things like these to make it look clean:
http://a.co/d/3FasvQS
http://a.co/d/9RTebhJ
(For Running the Cables Straight Through).
Or terminate with Cat6 stone using these panels:
http://a.co/d/1FrJpLy
Or you could run wide rectangular conduit.
For me, I'm running 8 POE Cameras and few wireless cameras.
I wanted to do the "Clean" look, buy running the wires down the wall, I was successful in my first round of cables, cause I pushed them all down at once...
However, when I went to add more cable, I couldn't get them down, so I ended up just using the media pass through panel in the ceiling, however, I also have my patch panel in an open closet.
Hope this helps...