Are you referring to hierarchical sets of terms, like "United
States--History--War with Mexico, 1845-1848"?  This is an "earlier
established term" of http://id.loc.gov/authorities/subjects/sh85140201 (now
labeled "Mexican War, 1846-1848").  Ed Summers or Kevin Ford are in a
better position to discuss the change of terminology, but it looks like
LCSH is moving past this string-based hierarchy in favor of one expressed
in terms of linked data.

Ethan


On Wed, Jun 5, 2013 at 9:32 AM, Joshua Welker <[log in to unmask]> wrote:

> I've seen those, but I can't figure out where on the id.loc.gov site
> there is actually a URL that provides a list of authority terms. All the
> links on the site seem to link to other pages within the site.
>
> Josh Welker
>
>
> -----Original Message-----
> From: Code for Libraries [mailto:[log in to unmask]] On Behalf Of
> Dana Pearson
> Sent: Tuesday, June 04, 2013 6:42 PM
> To: [log in to unmask]
> Subject: Re: [CODE4LIB] LOC Subject Headings API
>
> Joshua,
>
> There are different formats at LOC:
>
> http://id.loc.gov/authorities/subjects.html
>
> dana
>
>
> On Tue, Jun 4, 2013 at 6:31 PM, Joshua Welker <[log in to unmask]> wrote:
>
> > I am building an auto-suggest feature into our library's search box,
> > and I am wanting to include LOC subject headings in my suggestions
> > list. Does anyone know of any web service that allows for automated
> > harvesting of LOC Subject Headings? I am also looking for name
> authorities, for that matter.
> > Any format will be acceptable to me: RDF, XML, JSON, HTML, CSV... I
> > have spent a while Googling with no luck, but this seems like the sort
> > of general-purpose thing that a lot of people would be interested in.
> > I feel like I must be missing something. Any help is appreciated.
> >
> > Josh Welker
> > Electronic/Media Services Librarian
> > College Liaison
> > University Libraries
> > Southwest Baptist University
> > 417.328.1624
> >
>
>
>
> --
> Dana Pearson
> dbpearsonmlis.com
>