Yup. My phone has 3. In order. And my sister has "sister" in parentheses. Though they are not in the ICE list, housemates have "housemate" in parentheses, my psych is listed as "psych" then name...(ya know, 'cause that might be just what they're looking for )
I carry a card with location of and representative for my Advanced Directive too. Hell, had the whole thing right on the passenger seat on those 3,000 mile drives. Pull the plug? Don't even plug it in! Guess who's got vegetable phobias. Other reasons too.
In Case of Emergency is listed at the top of "contacts" in my phone, so there's no hunting around for it, and it lists all 3 in order when you hit the button. This is the case for most (all?) phones, isn't it?