I'm Stump on this Railroad question . I heard about Frisco railroad but who are they tied too ? I know I am new to this forum but I am learning more and more ! I live in Bartlesville Ok where we have a ATSF Depot and a few item from ATSF so I am a tad bit fuzzy on the Frisco History!
May I recommend reading the introduction thread A Brief Introduction to the Frisco Railroad Also, take some time to do a Google search and read other reference sources about the Frisco.
Short answer: no. Short but somewhat longer answer: no, but they were absorbed by BN, which merged with ATSF to form BNSF, so there is a relationship now.