Journey through one researcher's quest for his Irish grandmother's maiden name. In a series of three articles, Kevin Cassidy details his search and, along the way, suggests useful avenues of research and resources that may apply to other research problems. For example, using the New York City Police Census as an substitute for the lost 1890 U.S. Federal Census. The Police Census was taken in the fall of 1890 because New York was unhappy with the federal census count. Available through the Family History Library, only records for Manhattan and the Bronx survive from this second count. The first article in the series, Irish Case Study: U.S. Resources, may also be helpful in showing how deductions were made, perhaps allowing you to take a second look at your own research.