Firstly, I know "no one owns a name" but people can have strong opinions.
So, this is the situation;
Paternal cousin has a DS15 called Thomas, but nn Tommy.
Maternal cousin has DS5 called Thomas. Always Thomas, never shortened.
I'm the common denominator cousin, the other two know each other but not well. They would see each other rarely, usually weddings etc within our middle family. They'd be aware of each other's children, but I wouldn't be surprised if they didn't know names.
I'm now pregnant with DC1. The only boy name DH and I can really agree on is Thomas, nn Tom.
So in my family there would be a Tommy, Thomas and Tom. That's weird isn't it? Potential to offend/raise eyebrows on both sides of the family?
Do I need to strike it from the (very short) list?