Going by the book the answer is NO as 1Ps can bring only 1 more person to E+. Given the fact that you are planing to put 4 people on 1 PNR even if all of them had status you'd still have to call CS to get them into E+ seats thanks to .bomb limitations. This may open up some possibilities for you - put all 4 of them on 1 PNR and when you call to get them the E+ seats mention that you tried to do it online but couldn't and that all 5 of you should have access to those seats b/c your dad (1P) and you (1K) should be able to bring that many people up front. You will probably get those seats but will have to check on them daily to make sure that the sweep doesn't put all of you back into E-.