I have looked into this. Both my husband and I work full time so we just haven't gotten around to seniding in my son's photos yet.
But, the agency's I found in the DFW area. A good list -- is to look at the JCPenney.net -- on modeling opprotunites, they list 7 agencies in the Texas area -- 6 are in Dallas. They all have websites or are very helpful in explaining what you need to do. I was directed to this site by my next door neighbor who modeled for JCPenney's when she was younger -- she was also in a Van De Camps commercial - her big break? But she did on the weekends and made enough money to go to college on -- she started when she was 4 and modeled till 15.
The site lists the names, address, and phone numbers -- all agencies listed do child modeling -- some do infant modeling.
C.