Diana--
My great grandmother's name was Wilhemina Kipferley/Kupfeurle/Keppfuller/Kuppfulle. Like you, I have several different spellings for her surname. Her death certificate even lists a fourth way of spelling her name, and lists her father's first name as Joseph.
Wilhelmina (she went by Minnie) was born in Baden, Germany in 1842 and immigrated to the U. S. in 1858. She married Frederick Meng in 1866 in St Louis.
Any conncection? I'd love to hear from you even if you can't make a connection since this is not a very common name.
Dena Van Scyoc
Walnut Creek, California
msdena1@earthlink.net (home)
denavanscyoc@bankunited.com (work)