Yes, there are several similarities between their careers. I know of a couple more videos where they performed together, which are not listed on IAFD. In addition, they did many photo shoots together for various magazines. And, they both started out in Germany / Europe and went to the US together in 1991, where they again starred in the same videos.
In some videos, it looks like Joey was telling James what to do or gave him directions. I've heard or read somewhere that James was mute, and probably Joey did much of the talking for him - especially during that time in the US. It looks like Joey was very outgoing and spoke English very well.
Early during his time at VTO in Germany, Joey did an interview for Teresa Orlowski's Videostar Intim magazine, where he answers some of your questions, like if people were aware that he did porn:
Joey Murphy Porn Hunk
While some of it may be made up, there are also some facts, like he was dating Jasmin Duran at that time, which he also confirms in an interview for Harry S. Morgan:
Joey Murphy Porn Hunk
There, Joey said that he was 26, and the video was shot in 1989. Unfortunately there is no mentioning of James Lewis (Clemens) in both interviews.
I've also tried to find out what both are doing now - without any success. The latest info on Joey was his 2005 video, where he still had a muscular, ripped body, but his signature long hair was gone...
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