Thomas, Milton Halsey and Gladys Joan Dieseth, eds. Vital Records of Rensselaer County, New York Births 1846-1850. NY: 1942. https://drive.google.com/folderview?id=0B7Mt-S77wZKfd1JfUEY5S0ZEeU0&usp=sharing The General Preface is about the same - explaining the law that required the records, the copy made in 1915 by Frank Warner Thomas from documents in the dusty basement of the Rensselaer County Courthouse, the inability to find those documents again in 1922. > PREFACE TO THE BIRTH RECORDS > The births are arranged by town and in the order they were originally recorded. There is a complete index at the end of the volume. > M. H. T. Unfortunately a few photos came out blurry, which I’ll have to retake. I haven’t uploaded the index. The reason in the gap in the marriage records which only had 1846-1850 and 1874-1881 is simply that Frank Warner Thomas did not locate any. Even the records for the years named are quite incomplete, as was noted in the preface “Ten marriages from 1874 to 1881 found in the copy are included in their alphabetical places.” There is also likely to be a number of copying errors and typos. It wasn’t known by the Thomases or Dieseth if records prepared in other counties under the “Act Providing for the Registry of Births, Marriages and Deaths” passed by the NYS Legislature April 28, 1847 survived, other than some for Rensselaer County and Suffolk County. Possibly other researchers have turned some up, but I don’t know. Chris