If you have an Omaha Public Library card you can sit at home and search the Omaha World Herald as far back as 1983 by searching the ProQuest Newsstand database.
Point your Internet browser to
http://www.omahapubliclibrary.org, click the Research tab at the top of their homepage, and click into the Research Databases. Scroll down the list of databases on the left and click the Home Access link to Proquest Newsstand. You need a library card, because the barcode number on the front serves to authenticate your eligibility to search the database on a computer outside the library branches. ProQuest Newsstand is a commercial database, and it is governed by OPL's account license with ProQuest, so it is not freely accessible via the general Internet.
Once you are connected, click into the Advanced search template and enter Omaha World Herald in the first box. Set the box to "Publication title," and then enter keywords in the other box(es). This approach will target only the Omaha World Herald among the 200 or so newspapers included in the database.
ProQuest Newsstand is not an image database, rather it retrieves the texts of articles without accompanying photographs or other graphics. The 1983 cutoff is an artifact of when the Omaha World Herald converted to computerized typesetting and began to accumulate files that can be processed for online access.