-------- Original Message --------
Subject:        Re: Historical shapefiles
Date:   Wed, 08 Jul 2009 09:08:52 -0700
From:   Matt Fox <[log in to unmask]>
To:     [log in to unmask]
References:     <[log in to unmask]>



If the congressional districts fall along County lines, and you have a
list of the counties in each congressional district, then you could
conceivably create historical congressional district shapefiles by doing
a cross reference with the historical county shapefiles available from
http://www.nhgis.org/

Matt


Maps-L Moderator wrote:
> -------- Original Message --------
> Subject:        RE: Historical shapefiles
> Date:   Wed, 8 Jul 2009 07:59:20 -0500
> From:   Chris Winters <[log in to unmask]>
> To:     [log in to unmask] <[log in to unmask]>
> References:     <[log in to unmask]>
>
>
>
> Umm, David Miller of Carnegie-Mellon told me he was responsible for
> the Great American History Machine.
> He never created historical boundary files for congressional districts.
>
> Chris Winters
> University of Chicago Library
>
> ________________________________________
> From: Maps, Air Photo & Geospatial Systems Forum
> [[log in to unmask]] On Behalf Of Maps-L Moderator [[log in to unmask]]
> Sent: Wednesday, July 08, 2009 7:26 AM
> To: [log in to unmask]
> Subject: Re: Historical shapefiles
>
> -------- Original Message --------
> Subject:        Historical shapefiles
> Date:   Tue, 07 Jul 2009 22:19:08 -0700
> From:   Virginia R. Hetrick, Ph.D. <[log in to unmask]>
> Reply-To:       [log in to unmask]
> To:     Maps, Air Photo & Geospatial Systems Forum
> <[log in to unmask]>
> References:     <[log in to unmask]>
>
>
>
> Hi, Frank - With some help from the UCSB geography folks, Chris has
> communicated by email with the CMU guy.  So, since I figured he was now
> the expert, I didn't bring his email to me on this computer.  Chris
> probably has more accurate information than I do.   So, put a shout out
> for Chris on this list.  I think his last name is Winter and I think
> he's from U Chicago.  v
>
> --
> \ /     Virginia R. Hetrick, here in sunny California
> 0      Email:  [log in to unmask]
> Oo     "There is always hope."
> My fave:  http://www.washington.edu/cambots/camera1_l.gif
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>