Interference Pop Foul First Base?

[falsecut]

I am looking for a FED rule but as TwoBits said a little earlier, I'll settle for anything written at this point which seems to be coming in from NCAA and ASA.

I think that the idea that being in contact with the base gives you protection seems to be fair to both sides. Had the girl in my OP removed herself from the bag to avoid the fielder, she would have been in real jeopardy of being doubled off as the first baseman could have easily stood on the bag while making the catch.