Board Thread:Speculation House/@comment-3257939-20131111020445/@comment-8207536-20131117020211

Hmm, could it be that there are only two parents? Mr. Xiao Long and, we presume, Summer Rose. Perhaps Summer simply never changed her name, an increaseingly common trend. Thus I find that there are two options:

1.  Ruby was born Ruby Xiao Long but, after her mother died, she changed it, 'cause she was a mama's girl where Yang was a daddy's girl.

OR

2.  As the first-born Yang recieves her father's name and, being second, Ruby recieves her mother's name.

This just came to me so thanks for the mental stimulation. 8)