Hi Terry
looking forward to seeing your photo's from your trip.
a quick search for 42-17575 Stearman PT-13D produced the following result
Airframe Family: Stearman Kaydet
Latest Model: Boeing PT-13A Kaydet
Last Military Serial: 42-17575 USAAF
Construction Number: 75-05738
Last Civil Registration: N1359N
Latest Owner or Location: Wiplinger Robert, Inver Grove Height, MN
there is a photo of the Texan at
http://www.abpic.co.uk/photo/1088092/
but no reference to a Construction Number