Yes. I grew up in the area, Thurman is a tiny but actually very nice little town. This address is rural, between Thurman and Tabor. Not quite as small as Thurman, but still what I'd describe as a nice little town.
It's 30 minutes from the Omaha / Council Bluffs metro, probably 40 minutes from anywhere you'd find sex workers. He was known to be a gambler too, right? In the 80's the Aksarben horse track in Omaha was a big deal, then the Bluffs Run dog track in Council Bluffs, and finally casinos in Council Bluffs opened in 1994 (might have been 1993, I don't remember exactly). All about 40 minutes from his address.
Sounds plausible to me.