Ilan,

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.

Name:	Harry Cohen
Event Type:	Death
Event Date:	22 May 1910
Event Place:	Manhattan, New York City, New York, United States
Event Place (Original):	Manhattan, New York, New York, United States
Gender:	Male
Age:	1
Birth Year (Estimated):	1909
Father's Name:	Jacob
Mother's Name:	Becky Jaffe
Certificate Number:	cn 16413

Regards,

Sherri Bobish
Princeton, NJ