If you're somewhere near an LDS family history center, you might consider searching some Warren Co., Indiana, records. If you check the familysearch.org catalog for "indiana, warren," there appears to be a lot of records that might help. However, it appears that you can only view them at a family history center. I.e., the symbol under format indicates they are images, most likely images of microfilms you can view online (but only when logged on at an LDS family hist center.)