Question

Did George Silver receive a land grant?

Answer 1

You could search under land grants, revolutionary war, George Silver.  

Here is his burial, which you may already have.  https://www.findagrave.com/memorial/45794177/johann-jurg-silver

Pension application:  https://revwarapps.org/r9572.pdf

Where to look for land grants:  https://www.familysearch.org/wiki/en/United_States_Military_Bounty_Land_Warrants