odd question about the boys names

Not that important but i noticed that its, Daniel aka diggy, jojo aka joseph jr (after his father) and russy aka russell jr.

So is russy russell jr after his uncle?? Obviously im assuming.

But how come diggy isnt a jr of anyone.

Im not a fan of naming your child after you because i think they should have there own name not there fathers or whatever but doesnt that kinda make him feel left out??