Client Details in Categories

I want the Client Name on the archive category pages, as well as on the individual testimonial pages from that category page.

Example Category Page:
https://customtirecovers.com/testimonial-category/americana/

Example Individual Testimonial Page:
https://customtirecovers.com/testimonial/turned-out-perfect/

The Client Details are on the main Testimonial page:
https://customtirecovers.com/testimonials/ but not the testimonial category pages.

The page I need help with: [log in to see the link]