Here's a picture of his brother (bottom) and a bonus mystery plant (top). The mystery plant at the top is about 1/2 the size of the others.

Oh, I should add -- if the top plant looks a little beat up, it's 'cause a tree fell on it last year.

Your plant albo-marginata so its not Inkwell. Its a (carolinae x concentrica) hybrid. Thousands of hybrids were produced from
these plants that were never registered. They are grown for commercial sale.

There seems to be both variegated and albo Inkwell, at least that's what I see when looking at various pictures of them on the registry websites.

I don't doubt you about the plant's provenance, but if you do a google image search for 'Neoregelia inkwell,' a lot of plants come up that look like mine.

https://www.google.com/search?q=neoregelia+inkwell&tbm=isch&tbo=u&source=univ&sa=X

For what it's worth, the Walmart also had plants that I thought were well-known hybrids. I recognized:

Neo. Tangerine
Bill. Casa Blanca
Neo. Fireball
Neo. Kilauea Fire
Vr. G. Nova
Ae. Little Harv
A. Skinneri
Ae. Mend

And a few others I'm forgetting, along with the above plants and a big green neo I couldn't identify.

Here is a link that might be useful: Google search

You list of plants are commercialy grown plants. They have been around along time. I don't use google. The BCR is your most reliable source. And FCBS.org The albo version is a revert plant and not something that will reproduce pups identical to the mom consistantly. Many of Chester's early hybrids were less stable than what he know produces.

Look up Yin and Yang