This would be Ashville, Ohio, the only other US town of that name besides the one we now plan to move to in 7-10 years. In Ashville, Ohio’s immediate area is found both a Robtown and a Duvall. Might point to Robert Duvall, who also starred in Apocalypse Now and recited the iconic phrase, “I love the smell of napalm in the morning.” *And* there is also a MASH connection (!). Duvall played Frank Burns in the movie that the series was based upon later, which, of course, featured Jame Farr as Maxwell Klinger.
We’ve also mentioned another Duvall town in this blog (Washington state), connected at the time with Shelly Duvall, star of The Shining. No relation to Robert as far as I can tell.