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Note: I also got in touch with Bev Vincent (author of The Dark Tower Companion and The Road to the Dark Tower: Exploring Stephen King's Magnum Opus) about this question, and I will add his reply if and when I get one.

Note: I also got in touch with Bev Vincent (author of The Dark Tower Companion and The Road to the Dark Tower: Exploring Stephen King's Magnum Opus) about this question, and he said:

Off the top of my head, I think he named people from his ka-tets. I don't think Deepnau [sic] qualifies.

• Bev Vincent, personal correspondence

When I pointed out that many of the people Roland named (i.e., Talitha, Cort, David, Dinky, Gabrielle, Hax, Callahan, King, Steven, Ted, Vannay) were never members of his Ka Tets, he replied:

I don't have a definitive answer for you, I'm afraid.

• Bev Vincent, personal correspondence

I think we might be able to break the names down into a few categories, which would help explain the criteria for being mentioned.

###Members of Roland's final Ka Tet:

• Eddie Dean
• Susannah Dean
• Jake Chambers
• Oy the Brave

###Members of Roland's earlier Ka Tets:

• Alain Johns
• Cuthbert Allgood
• Jamie DeCurry
• Sheemie Ruiz
• Susan Delgado

###People who died for the cause of the White, or for the Tower itself:

• Alain Johns
• Cuthbert Allgood
• David the hawk
• Eddie Dean
• Jake Chambers
• Jamie DeCurry
• Oy the Brave
• Pere Callahan
• Sheemie Ruiz

###People Roland loved and/or respected who died:

• Alain Johns
• Cortland Andrus
• Cuthbert Allgood
• David the hawk
• Eddie Dean
• Gabrielle Deschain
• Hax the Cook
• Jake Chambers
• Jamie DeCurry
• Oy the Brave
• Sheemie Ruiz
• Steven Deschain
• Susan Delgado
• Vannay the Wise

###People Roland promised to mention:

• Aunt Talitha

###People who made it possible for Roland to reach the Tower, although he didn't necessarily love them:

• Dinky Earnshaw
• Stephen King
• Ted Brautigan
• Aunt Talitha

###People who died, and for whose deaths Roland blames himself:

• Alain Johns
• Cuthbert Allgood
• David the hawk
• Eddie Dean
• Gabrielle Deschain
• Hax the Cook
• Jake Chambers (who died twice)
• Jamie DeCurry
• Oy the Brave
• Pere Callahan
• Sheemie Ruiz
• Susan Delgado

Here's a graph of who made the list, and which of the above criteria each of them met:

Roland's relationships with each of them took place primarily in his world (All-World), not our world (Keystone World).

Roland's relationships with each of them took place primarily in his world (All-World), not our world (Keystone World).