Several people weighed in on the subject on a previous thread found
HERE.
I nursed my son until he was 2 and a half, but after the first 18 months it was all done at home and usually around bedtime or during the night. Personally, I never wanted to make anyone feel uncomfortable around me so I'd always be very discrete in public, at least making sure I was well covered and not drawing attention to myself. That being said, if this turns into an argument about nursing in public, I'd probably be on the side of mothers having a right to nurse their children without restrictions being put on it especially when people talk about it in connection with specific rules or legislation. As with my feelings on a lot of topics though, I wish people would be quick to cut each other slack AND have general common courtesy in looking out for the comfort level of those around them, but I guess that's a little too idealistic for today's society.
No nursing in front of missionaries wouldn't have been my choice, but I don't think it would be appropriate to make an issue out of it. Breastfeeding is a touchy subject in and out of the church as it is, and at least in all the states I've lived in, there are specific laws that give her the right to do what she did.