Researching your elusive female ancestor can be difficult. Surname changes at marriage and the seemingly lack of records documenting the lives of women can make it difficult to conduct research in the same way you would for a male ancestor.
Writing in the WorldVitalRecords.com Family History Bulletin, Gena Philibert Ortega offers some suggestions on how to find more information about those elusive female ancestors. She especially suggests newspaper announcements of weddings, anniversaries, birthdays, and other celebrations. She also gives references to several online sources of digitized newspapers.
Since this was published in the WorldVitalRecords newsletter, I would expect the article to heavily promote that company's services. Indeed, there was exactly one mention WorldVitalRecords in her article and then she also mentioned a number of other useful online resources.
Good reading! "Finding Your Female Ancestor in the Newspaper" may be found at http://is.gd/1KjqQ.