Moses (Morris) Mendelsohn and his wife Leah Ellen Goldberg Mendelsohn were born (probably in Warsaw) around 1832 and emigrated to the US (New York) between 1864 and 1870.  They had four children in Warsaw: Isaac J., Joseph H., Hyman (Herman), Louis and another three in New York (Frank - my great-grandfather, Charles and Bertha (Betsy) - later married to Sender Federbush.  We have not been able to find tombstones for either Moses or Leah and are unsure about the immigration records we have found them all on many census records but immigration dates seem different for all, which is unlikely but possible  We would be particularly interested in tracing their ancestors back in Warsaw and was hoping the tombstones might give us names of their fathers.   I have looked at JewishGen and GesherGalicia Warsaw records to no avail.  Suggestions would be greatly appreciated.
Thanks, Beth

Beth,

Several NY (and one NJ) cemetery is searchable here:
Searching the Cemetery Databases
http://www.museumoffamilyhistory.com/erc-scdb.htm

You can search NYC death cert index here:
https://stevemorse.org/vital/nydeath-igg.html
The cert will list name of cemetery.

FamilySearch has transcriptions of some info of the NYC death certs:
https://stevemorse.org/vital/nyvital.html?type=death

Old digitized NY (and now other states) newspapers can be searched here:
https://fultonhistory.com/Fulton.html
You can search by name or address.

Regards,
Sherri Bobish
Princeton, NJ