Hi Bob
I am quite sure both Ty'n-y-fedw and Ty-nant, are both the names of farms.
I to live in Canada but I have two sites very helpful for looking around Wales. They are ukvillages.co.uk and multimap.com. You can navigate around on the maps and also zoom in quite close.
On multimap, if you click on the camera, you get an aerial view of the area.
On ukvillages when you zoom in quite close, you can see where Ty'n-y-fedw is located. Ty-nant shows on both sites.

Bob in Alberta