I said something like, "Well, she's going to be a really cool kid so no one will think of making fun of her name." I also told him the obvious--ever since River Song on Dr. Who (don't watch it but Jessica is a fan), the name has become much more popular.
I looked up the meaning of the name River:
Everyone has his or her own preferences in names. For myself, I avoided naming my kids longer names that had a nickname (Jeff is my only child I didn't name)--No William who is called Bill or Margaret who is called Maggie or Peggy. I think this is because my mom named me Katrina but called me Kathy. That is confusing because Kathy is normally short for Kathryn or Kathleen.
Names have definitely changed over the years. Here are the top baby names from when I was born and now.
The interesting thing is that many of the girls' names are very old fashioned names that have become popular again.
I wrote more about names and trends on my parenting blog HERE.