I think that if you use a good source about the troop carrier
, you will be able to understand by yourself.
First check the air movement table http://www.6juin1944.com/.../en_page.php?page=para
- serial #13 was carrying the following elements :
3rd Bn 501st Prcht Inf - Div Hq, Div Sig, et Div Arty Hq - Supply
- serial #14 was carrying the following elements :
501st Prcht Inf (-2nd & 3rd Bns)
- serial #15 was carrying the following elements :
2nd Bn 501st Prcht Inf - Co "C" 326th AB Engr Bn (-1st & 3rd Plats) - Det 326th AB Med Co - Supply
For serial #13 it's not Regiment Hq which was carried but Division Hq : General Taylor was in lead plane piloted by McNees
For serial #14 it's the 501st PIR which is carried LESS 2nd and 3rd Bn.. It means that the first battalion was carried but also Regiment Hq. I told you in a precedent message that Col. Johson was in lead plane of serial #14
If you want you can confirm by checking the field order for the 101st A/B Div http://www.6juin1944.com/....php?page=ann2_fo1_101
note : on this field order, the serials are those of the division not those of the troop carrier command. You must add the 6 serials of pathfinders to obtain the same number for a serial. Note also that the F.O. is dated 18 May and that you have a DZ 'B' which will be amended on 27 May in 1.d http://www.6juin1944.com/....php?page=ann2_fo1_101
And, at the end, if you check the map of the drop pattern for the 501st PIR, you will see that the location of the landing for stick #42 (from serial #14) match perfectly with the route followed by Gibbons and his group on the early hours of D-day.
I think that I don't have more things to add