Gerhard Haidacher was born in 1963.

yes

Gerhard's birth name is Gerhard Leknes.

This surname Haidacher is of German and Swiss German origin, mostly found in Austria in the province called Landeck. The name perhaps means "heath running water" from Haid, perhaps also as Heid, meaning "heath", and Ach meaning "running water", perhaps derived from a place called Haidach. Another possible origin is that the name Haidacher is a variant of Heidecker, a more common surname, derived from places called Heideck in German and the name is also found in Austria. For more information about the name Heidecker, see related links below.

Gerhard Schornhorst has written:

'Gerhard Scharnhorst'