I searched https://stevemorse.org/vital/nymarriages-igg.html?index=bride
with broad parameters on name spelling, etc. and did not find a record using bride's surname Baunstein, or Jaffe (assuming that the following death record is the correct one.)
I did find what may be little Harry Cohen's death record at https://stevemorse.org/vital/nydeath-igg.html
May 2, 1910 Manhattan
Harry Cohen, 20 months old.
A bit more info transcribed at www.familysearch.org
The actual cert will have info on cause of death, and their address.