I realize your post was made nearly 14 years ago, but just in case you're still around, I will tell you what I know and perhaps you can help me.
I am descended from John Marshall Ney (1836-1907), who started the J.M. Ney Company in Hartford Connecticut. I found the following entry in a book about the J.M. Ney Company:
“At his birth in Redrichen, Alsace-Lorraine, near the German border, in July, 1836, his French parents christened their eldest child “Michel Neu.” But, as was frequently done in those days, the Neys anglicized their names upon migrating here in 1847, and the 11-year-old boy was called John Marshall Ney. His mother, Odile Spildnner, became Odelia; and his father, Jean Henry Ney, simply dropped the ‘Jean.’”
I am very curious about the fact that you are also looking for the same two surnames together: Spildenner and Ney, although the individuals seem to be different.