Thanks choroba,

I'm afraid either solution doesn't work. When I change my script to:

use lib '/path/to/my/local/directory/';
use Script::Singleton;     # Line 6
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...the output is still:

Can't locate Script/Singleton.pm in @INC (you may need to install the 
+Script::Singleton module) (@INC contains: /home/demo/pullWorkload/scp
+LRSIControllerDir/toys/ /etc/perl /usr/local/lib/x86_64-linux-gnu/per
+l/5.30.0 /usr/local/share/perl/5.30.0 /usr/lib/x86_64-linux-gnu/perl5
+/5.30 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.30 /usr/share
+/perl/5.30 /usr/local/lib/site_perl /usr/lib/x86_64-linux-gnu/perl-ba
+se) at ./testMe.perl line 6.
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I note that the use lib must specify the directory, not the .PM file, BTW.

If the use lib doesn't add /path/to/my/local/directory/ to @INC, I'm at a loss on what might be the problem. Any thoughts...? Thank you for writing.