It seems that the organization that runs Montefiore Cemetery (St. Albans/Springfield Gardens, Queens County, NY) has redone their website which now includes a searchable database. It has done the same for its sister cemetery, New Montefiore, in Pinelawn, Suffolk County, NY. Just use the links below and click on the "Locator" link at the top of the page to begin searching. You should know that the databases have only been online for about two months. They still have plenty of burials to enter and there is still some tweaking to do, so be patient. Search now for people of interest, and if you can't find them on the database, try again at periodic intervals when the databases might be updated.
The searchable fields include first name and last name, month and year of death. The search results include first name, last name, age and date of death, grave location and society name.
Here are the links:
Montefiore Cemetery: www.montefiores.com/Montefiore/jewish-cemeteries-new-york/index.html.
New Montefiore Cemetery: www.montefiores.com/newMontefiore/jewish-cemeteries-new-york/index.html.
You might be better off using the link www.montefiores.com/index.html, and simply click on the photo of either cemetery office which will take you to the particular cemetery's website.
It should be noted that the folks who run these two cemeteries are not affiliated with the group who created the other six or seven Queens, NY cemetery databases, so the form of the cemetery databases are different. These two new databases are imperfect and are no doubt missing some burials, etc., but having access to them should make for some 'happy hunting.'
So have a go at it and good luck!