I did a google search for 'Frank Clayton porn' and there are a variety of results. Here's a few:
Frank Clayton at Monstercockland (13 photos here)
Don't bother with the Pornhub or the XVideos links as both show results for anyone with 'Frank' or 'Clayton' in the title, but nothing with our sexy hung muscle daddy.
Also skip the Pornzog link, the video has been deleted there.
The gay.bingo link is to a video with another Frank Clayton, not ours. Skip it.
Frank Clayton – Soldiering On
Hung Muscledaddy fucks MILF
(camera work is not fantastic, but we don't have many options for viewing this stud, so I'll take it)
The noodlemagazine link is misleading. It says its a link to My Dirtiest Fuck, but there's a completely different video at the link (nothing related to Frank). However, if you search the site for his name, you'll get 11 videos (along with a few duplicates and some that don't have him, but somehow wound up in the search results).
Save your time if you come across the EverydayPorn link. Even though there are supposedly 7 videos, every time I clicked on one of them, I got redirected. I've learned to try a few more times and I often reach the desired page. Not this time. I clicked one link 6 tims and got redirected each time, so I gave up.
Hope this helps some folks who want to see Frank's vids.