I remember reading about how were two Stephen R. Bournes working at Bell Labs at the same time (only one of whom was the author of the Bourne shell).

https://www.sendmail.org/~ca/email/README.cf.8.8.html

> [...] and at one time Bell Labs had two Stephen R. Bournes with offices along the same hallway. Which one will be forced to suffer the indignity of being Stephen_R_Bourne_2? The less famous of the two, or the one that was hired later?