Almost all of the students at Lincoln Park High, which has exclusively served teen mothers since 2005, are aged between 14 and 19. All of them are Latina - a reflection of the city"s 94% Hispanic population as well as its higher rates of teen pregnancies. Most are low-income, and a few are American-born Mexican residents who cross the border daily from Matamoros, Tamaulipas to attend classes in the US.