The original developers all built substantial mansions along Irving Park Boulevard between 1870 and 1874. All have since been razed, with the exception of the Steven A. Race mansion, which was moved at the turn of the century and now stands at 3945 N. Tripp Avenue. Another early home, built for Erastus Brown, father of John and Adalbert, also remains at 3812 N. Pulaski Road although greatly altered. The Great Chicago Fire of 1871, which was watched from the cupolas of several area homes, brought a new influx of residents who built many unique, but slightly less pretentious homes.