Your family lived http://ro.wikipedia.org/wiki/Birda,_Timi%C5%9F

Location:

* Country: Romania
* 10km E of Detta
* Postal Code:1926
* Railroad station: Birda
* Filial parish of: Detta

Population:

* 1977: 1150
* 1930: 1247 (63.6% Germans)
* 1910: 1321 (44.9% Germans)


The Totenbuch does not list anyone from Detta with those names and Birda is not listed. Maybe you will have to add your families death toll to the Totenbuch.
http://www.totenbuch-donauschwaben.at/en/index.php

As you see the parish for Birda is Detta...............

The LDS FHC does list:
Austria, Banat, Detta - Church records
Titles Kirchenbuch, 1724-1852 Katholische Kirche Detta (Banat)

and Austria, Banat, Detta - Genealogy
Titles Familienbuch der katholischen Pfarrgemeinde Detta im Banat und ihrer Filialen 1724-1846/52 Krämer, Anton

So there is a family book........I suggest you try "posting to the DVHH mailing list" for further information and possibly a look up and pull the church records and family book from the FHC shelves.

http://www.dvhh.org/banat/finding.htm

Mailing list
http://lists.rootsweb.com/index/intl/HUN/DONAUSCHWABEN-VILLA...