Smith & Wesson was still making, and selling, guns in .38 S&W into the 1970s.
H&R continued production of .38 S&W chambered guns into the late 1970s or possibly the early 1980s.
Within the past decade there has been at least one, albeit short-lived, derringer chambered in .38 S&W.
Thousands of .380-200 Webley and Enfield revolvers have been imported in to the country since the middle 1980s.
"Do you think any U.S. manufacturers are still making 38 S&W?"
Yes. Remington and Winchester BOTH still catalog the .38 S&W.
Hell, Winchester still catalogs the .32 S&W, and it's been out of active firearms production for a lot longer than the .38 S&W.
The .38 S&W is hardly obsolete.
"The gift which I am sending you is called a dog, and is in fact the most precious and valuable possession of mankind" -Theodorus Gaza
Baby Jesus cries when the fat redneck doesn't have military-grade firepower.