location of header files to cross compile loadable kernel objects

I recently installed Linux beaglebone 4.1.12-ti-r29 #1 SMP PREEMPT. I would like to cross compile Loadable Kernel Objects but cannot find the kernel header files to install on my PC. My usual source rcn-ee.net/deb/jessie has changed its format and doesn’t seem to have them anymore. Searching the internet and copying them from the Beagle itself has been no help. Can any one tell me where to find the files or tell me of a set I can use as a substitute.

on your beagle, they are "linux-headers-4.1.12-ti-r29"

The apt repo is also accessible via:

https://rcn-ee.net/repos/debian/pool/main/l/linux-upstream/

Regards,

And I thank you sir. Thanks for your time and reply. You have ended on and off days of frustration.
Mike