Yes, OVA just specifies it is a female.
Were your ancestors Jewish?
Was the address in English or you had it translated into English?
There are several SPERLOVAs in Praha's phone book:
http://seznam.1188.cz/s?q=sperlova++praha&x=58&y=17http://www.koutnasumave.cz/Small number of TICHACEKs in Germany's phone book
www.dastelefonbuch.de