There seems to be a trend of Uncles Ben who inspire a protagonist and then die (or at least appear to), inspiring them some more:
- Spider-Man's Uncle Ben
- Luke Skywalker's "uncle" Ben Kenobi (uncle in role even if not labeled such)
- Jon Snow's Uncle Benjen (who may or may not be alive)
Are there more Uncles Ben we can add to this list?
And is there any evidence that any of the Bens were named by their writers in homage to earlier examples?
I suspect the Star Wars case is coincidental, but G.R.R. Martin could have done it on purpose; it would not be out of character for him.
There is a John Carter character called "uncle Ben" or "old Ben" which would precede all of the above cases. He, however, does not seem to inspire or tragically die, that we know of.