Your post is quite old, but you may be still intersted.

For an Australian with roots in Stommeln I'm researching her ancestry. Maybe these are your Dohms from Stommeln:

Anna Maria ~19 Oct. 1813
Maria Catharina ~ 9 May 1816
Martin ~ 22 Oct 1818
Margaretha * 5 Jan 1822
Hermann * 19 June 1824

I have easy access to all teh Stommeln records. If you need assistance please e-mail me directly at info@iffland-genealogie.de

Hope I could help

Gaby