wallygator wrote April 2007 Referee addresse this w/ a case - Play 9 - foul by B during TD and foul by B during try - "it is possible ... to have both penalties enforced on the kickoff".

Only if the foul on the try is a dead-ball foul.

If Team chooses to have the foul on the TD play enforced on the kickoff, and B fouls again during the try, Team A may choose which penalty to enforce on the kickoff.  For example, B commits a 5-yd facemask during the TD play, and roughs the kicker on the try.  Team A may then either replay the try from the 1 1/2-yd line and kickoff from their 45, or enforce the RTK on the kickoff and kick from the R 45-yd line.

Don't believe everything you read in RefMag.

You may want to ask them to take at look at the NF website.  http://www.nfhs.org/web/2007/07/200708_nfhs_football_rules_inte.aspx

They have this play listed.

SITUATION 6: Prior to the ball being thrown during a play in which A1 catches a touchdown pass and advances for a touchdown, B1 holds A2 to prevent him from going out for a pass on the side away from the play. When given options, A elects to enforce the defensive holding foul on the ensuing kickoff. During the successful two-point try, B1 is guilty of holding A1. Does A have the option of having the 10 yard penalty added on to the previous 10-yard foul on the ensuing kickoff? RULING: No. If the captain chooses free-kick enforcement for both the foul on the touchdown and on the try, the captain must choose which of the two live ball fouls to have enforced. Because A chose to have the first foul enforced on the kick instead of the try, it has created a situation where subsequent fouls during the try may have the possibility of not being enforced with respect to yardage. (8-2-2; 8-3-5b; 10-2-4)