Tom Tall, a young man who was part of the String Music Tour with Reeves, Ginny Wright, the Browns, et al in the Fabor Robison/Abbott days, once cut a song (the name of which escapes me at the moment) and he sounded eerily like Jim on some phrases. Until I studied it more closely I actually thought it WAS Reeves. Later, I got to know Tom, a very nice man, (who sadly has since passed away). He told me Fabor had specifically asked him to try to sing as closely as possible to Jim on that number, and he sure succeeded.
Other singers have done "Jim Reeves-style" songs and will sometimes hit some notes that sound really close to Reeves, but nobody seems capable of sustaining those intonations through an entire song.
Some of the best at covering Reeves material, such as Arne Benoni, do not try to sound like Jim. They are stylists in their own right and merely cover some of Jim's songs, but do so splendidly.
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