Originally Posted by spiffy_dude
...Is there some way that we can merge records so that we can be sure of seats together and she also gets to use the 1P benefits...
I'm not sure what other "1P benefits" you refer to other than seats in E+/exit row with you...
But if both of you are traveling together, you should be able to check in at the 1P check-in and use the 1P security line at SFO.