you need a placename for asking in the tyrolean country-archive for him - without a place they can´t search in the microfilmed churchbook-entries (Kirchenmatriken):
http://www.tirol.gv.at/themen/kultur/landesarchiv/archivbest...familynameslist 1940/41 Tirol&Vorarlberg:
Thalhammer in > Achental,
Hall, Innsbruck, Kufstein, Mayrhofen, Schwarzach
phonebook
www.herold.atTirol has 20 entries for
Thalhammer and 0 for Thalhamer