Wow, even Thalia and Rachel were included. Nobody really likes Frank.< who could not like frank? He's like a soft cuddly panda bear, and I relate to him most.<== frank had a growth spurt. He's probably around Jason's height <<<< isn't THAT short :
Grover would've been born in 1977 because he was 28 when Percy was twelve. So if you do you get 16 and if you do 1993 (the year Percy was born) and subtract 16 from it you get or which should equal out to the year Grover was born.