Russell Sackreiter can be reached at
RSackreite@aol.com. However, when I did that and asked about the source of his genealogy info, he told me that it came from Penny (Aicher) Nolan, my dad's cousin who lives in/near Seattle, WA. (She doesn't have a PC, so Russell was posting it for her.) In turn, she did her own research and also got some of her info from a Swiss genealogist named Manuel Aicher. (See my 10 Feb 2002 posting on this same Aicher family page at
http://boards.ancestry.com/mbexec?htx=board&r=an&p=s... for more info).
I think that Manuel might be a good source (
aicher@eyekon.ch) and also Timothy C. Parrott (
Timoshka@aol.com), who lives in Iowa City. I've emailed to both about the Aicher family tree and can send you more info if you're interested. However, I probably don't have anything more about Rosa Amanda than you already have.
P.S. Rosa Amanda was Bartholomaus' granddaughter and Romwald's daughter. I'm descended from Rosa's brother, Louis B. Aicher.