3rd Street

Are you sure this is the right address? Kinda long.

Not possible-that is not a valid 3rd Street address. There is a Staples at the corner of 3rd Street and 4th Avenue-but, house numbers on 3rd Street do not go up that high-we only have 3 digit numbers here

Try this, IPD 1029...

I did a google search on the address and got one hit on a Joseph Rockelin, on a genealogy website...I imagine this is probably your grandfather. It does list 13450-23 3rd St as the address, so I searched Joseph Rockelin and found the following on a rootsweb page:

ROCKLEIN-Joseph E-Prob-1928-DEC 29-NY-Queens-1253-29 (AD)-134-50 233 St--PROB0018-BK

As you can see, the original query hit separated the 23 & 3 and turned it into a non-existent park slope address. Your grandfather actually lived in queens...and you can that usually by the whole hyphen in the address number thing...I think that's how most if not all queens addy's work. Here's the site URL where I found that info above...good luck on hunting for more info. Hopefully, queens has a cool board like this that you can utilize for your quest...like Queensinian dot com or something

http://homepages.rootsweb.com/~tdew/RPage.htm