I've seen this one around:
Sarah Palin married her high school boyfriend, Todd Palin, on August 29, 1988. The Palin family lives in Wasilla, about 45 miles (72 km) north of Anchorage. The Palins have two sons (Track, 19, and Trig, four months) and three daughters (Bristol, 17; Willow, 14; and Piper, 7) [ages as of August 2008]. Todd Palin has said Track's name came from the interest Sarah's parents had in the sport and the fact that he was born in the sport's season; Bristol was named after Bristol Bay in Alaska, where Todd grew up and where he does commercial fishing; Willow was named after Willow, Alaska; Piper got her name because it is uncommon and "a cool name"; Trig's name is Norse for "strength".

1)Your first-born will be named after your parents favorite sport:

My mom likes Hockey and my dad likes Baseball.

2)Your second-born will be named after a nearby area that you're not from but you like the sound of part of the name, and maybe you have nostalgic memories of said place:

The Atlanta is so ripe for the picking. How about "Dahlonega"

3)Your third-born will be named after another nearby place, for no reason other than you already have two children and don't have time to put much thought into another name:

"Tallulah Gorge"

4)Your fourth gets a "cool" name:

Olive

5)Your fifth gets something mythological, possibly straight out of Lord of the Rings:

Beowulf Odysseus