- unitid
-
{"value"=>"275625", "type"=>"local_mss"}
{"value"=>"EM. 1405", "type"=>"local_emmet"}
- unitdate
-
{"value"=>"May 16, 1828", "type"=>"inclusive", "normal"=>"1828-05-16"}
- unittitle
-
{"value"=>"Letter to John James Appleton"}
- physdesc
-
{"value"=>"A. L. S. 1 page. 4o", "format"=>"simple"}
- abstract
-
{"value"=>"Introducing J. E. Calhoun, of the United States Navy, who is visiting Europe."}
- origination
-
{"value"=>"Calhoun, John Caldwell (Washington, D.C.)", "type"=>"persname", "role"=>"Author"}
- date_inclusive_start
-
1828
- date_inclusive_end
-
1828
- keydate
-
1828-05-16
- date_start
-
1828-05-16
- date_end
-
1828-05-16