Here are two websites that provide data on The American Civil War Facts, Civil War Soldiers, Civil War Music and Civil War Pensioners. One site is a publishing company by the name of Alexander Street who provides on-line databases to libraries and institutions only. You can gain free individual access to their databases until the end of the month of April.
The second website is Footnote where you will find the complete collection of Civil War Pension card file index cards. These index cards often contain vital record dates of death that are available no where else. If the widow obtained a pension you might obtain previously unknown information on her. Once the pension file is known from the index card you are able to send to the National Archives (NARA) for a copy of the complete file. The original pension files themselves have never been microfilmed yet and the only place they are available is NARA.
To gain a Free Trial access to The pension index, go here: Footnote.
Database publisher Alexander Street is providing free access to these parts of “The
American Civil War Online” through April 30th at
http://alexanderstreet.com/resources/civilwar.access.htm : “The American Civil War: Letters and Diaries,” “The American Civil War Research Database,” and “Illustrated Civil War Newspapers and Magazines.”
No registration is required. A user name and password are provided on that page for logging
in. (Thanks to Joy Rich of the APG mailing list for this announcement.)