Showing posts on a subdomain directory from parent site

Hi everyone,

I have a business website (the parent site) that hosts a blog that has different contributing authors.

I also have a subdomain for a business listing directory. The blog contributing authors are given a spot in the subdomain directory.

I would like to list their contributed articles in their directory listing.

I have set it up and am able to pull blog posts from the subdomain (just a fake post), but cannot figure out how to pull from the parent website?

Thanks for your help