api with author's first name vs last name

[Shawn]

None of the api responses seem to include author's first name vs last name.

Desired: "Gaiman, Neil"
Found: "Neil Gaiman"

e.g.
Review (shelf) api:
https://www.goodreads.com/review/list...
------
<authors>
  <author>
  <id>681082
  <name>Drew Melbourne
  ...
------
Author api:
https://www.goodreads.com/author/show...
------
<author>
  <id>33918
  <name>China Miéville
  ...
------

The reason I include the reviews api is because the reviews non-api page DOES include the author's "last name, first name" view:
https://www.goodreads.com/review/list...

So the request is, please expose the source of the "last_name, first_name" display.

The use-case is attempting to sort by author, in a manner that's useful for looking for books at the bookstore or library.