Sherri-
I am also looking for the parents/siblings of Michael Pfiester. He is my GGG-grandfather. I do know the following facts:
He married Wilhelmine Pletz (b. 1828, d. 1924)
They had the following children: Henry, William (I am descended from William), Wilhelmine Luise, Friedrich August, Caroline, Eduard, Emil Otto WIlhelm Heinrich and Bertha Lina. I can give you more info. on William's line if you would like.
I also found last week Michael Pfister listed on the list of soldiers for Company E of "Stucken's German Company". He is listed as being a trumpeter. It shows him as originating in Wurzburg, Bayern, Germany and he was a tailor. Frank Van Der Stucken was the captain of this company.
If you would like more info. or if you have anything you could share with me, please email me directly.
msweb22@yahoo.com. Thanks!