Good morning.
Regarding the name of the church in Rösa (and beyond) please see here: Auferstehungskirche (Ascension Church)
www.kirche-krina.de
The church registers have been microfilmed and are available at the church archive in Magdeburg.
Contact data may be found here:
www.archion.de
When the church registers will eventually be online available on Archion is unknown as of yet. Maybe any time next year, or may be even later.
Sorry.
Kind regards, Vera