There are a lot of "Dave Nelson"s out there. I'm the "David Erik Nelson" one. If you are looking for a "Dave Nelson" who wrote a story where robots had sex, or where a talking Squid did something morally reprehensible, or where a guy in a bar explains about this haunted dog he got from the Human Society, I am that guy. If you were at a talk where a "Dave Nelson" gave you tips on writing or teaching or throwing boomerangs, I'm also him. If you read a book or article by a "Dave Nelson," and it resulted in a mild but painful electric shock or left you feeling slightly more well-informed viz. the small business ecosystem of Ann Arbor, MI, then I am probably the "Dave Nelson" you are looking for.
But if you are looking for an actor or a senator or a real estate developer or an engineer, I'm not them. If you are looking for a Rabbi "Dave Nelson"--and Michigan has a whole mess of 'em--I'm not any of them, unless you are looking for the one that performed a multi-denominational Hindu-inflected wedding in South Carolina on his 34th birthday, because I am that "Dave Nelson." I am totally that guy.