Could I trouble anyone who may have a little spare time when researching their family in Graz to have a look for any information on my family on my mothers side. I would be very grateful.

My grandfather was Heinrich Koren
Birth 4 Jul 1894 in Leutschach Southern Styria Austria
His mother was Maria Koren (unmarried I believe)

My grandmother was Aloisia Loibner
Birth 21 May 1902 in Sajach Austria
Her father was Franz Loibner b. abt 1881
Her mother was Maria Gaisch b. abt 1881