Ellen,If you know the bd as 8/04/87 it is most likely a slamdunk! Even 1887 alone loooks good! It would be a greater stretch to assume not them with parents surnames correct.( I have Ploch in my tree later found as Block, Bloch). I believe Ploch was "old country". I  also once followed an Isidore who changed his name so as not to be id'd as hebrew.Also the LDS extracts of NYC records are often not reliableA thought: If you send to LDS using the batch # for a copy of the record, or the film to view, perhaps you might correlate the hospital location (if any) with your 1880, 1900 census neighborhood locations.Tom(further north of NYC than Barb)