In order to facilitate my own search for sacramental records, I realized I needed to know not only where my relatives had lived, but also what churches were in their neighborhoods, and how long those churches had been there. So, using information from sites like this and this, I created a Google map of all of the churches in Brooklyn that had been founded through 1900. I aim to try to add younger parishes, too, but I haven't gotten there yet. I figured 1900 was a good-enough stopping point that the map had become something I could share, and that others researching families in Brooklyn would be able to find it useful as well. The information included is fairly basic; I haven't been able to add details such as the historic ethnicity of a parish, or its mailing or web address, though I know that these would have been helpful. (A shocking number of churches still don't have websites, actually!) I hope that in its current form, though, it's nonetheless useful. Please share the map - available here - with other researchers!
View Brooklyn Catholic Churces in a larger map