Becca, who's in the band with Dalton, is Rowan's niece, so they can both be the cool uncles to the band. (Even if it DID take him until recently to go see them play. He's been busy. XD)
Being that he's local, He'd probably know Rowan and his family anyway, since they've been here forever. Ro is 35, so he's quite a bit younger, but his sisters are 39 and 40 year old twins, so your guy might know them.
The other three I have are: ~carterbroussard, who's originally from New Orleans, and he owns a business in St. Louis. He's trying to make more friends now that his life isn't as weird as it was even last year (He was hiding who he actually was due to having been disowned by his family and sneaking into owning the majority of his father's business through the business he runs in St. Louis). His girlfriend Cera is way better and making friends than he is, and he's letting her help as much as possible.
: ~pathosis, Tobin Grey, is a NYTimes Bestselling Author, with two series published. If your guy likes Sci Fi/Fantasy, he might know Tobes' work. Tobes is bisexual, forgets to sleep and eat, writes at all hours of the night, and gets a little spastic and crazy when he pulls his head out of his computer.
: ~pinborough, Fisher Pinborough, 4th grade teacher and divorced guy, friendly with most people, can't tell when women are flirting with him, and is super zen most of the time. He's also goofily into puns and dad jokes, even though he isn't a dad.