No. That is too far a leap to be logical to me.
Bartholomew has other spelling options? I think that is the best one.
Nicknames:
BartBarty
Barto
Barth
Bartho
Bolo
Tholo
Lomy
Barlo
Three boys nappin', one mama namenerdin'
To peruse my top 100ish names:
http://www.behindthename.com/pnl/82589
He is becoming greater, I am becoming less
Bits of the journey here:
http://jodifriesen.blogspot.ca/And some family cuteness here:
https://www.flickr.com/photos/41705228@N08/