I'm also looking for some ancestors named Reibel. Although I don't have yours in my research so far, I thought maybe we might still have something in common.
My mother's mother was Frances Reibel, born July 24 1915 in Scranton, PA. Her Father was John Baptist Reibel, born about 1880 in Buffalo, NY, he married Lorretta Carroll and they lived in Scranton. As well as Frances, their children were, John, Lorretta, and Mary. Mary married Bernard Moran, Lorretta married Joseph Nealon.
John Baptist Reibel's father was Jean Baptiste Riebel who came from the Alsace/Lorraine area of France. Although it's so close to the German border it has on occasion belonged to Germany. Jean Baptiste married Christina Noel.
As you can see, my information is a bit sketchy, but if it ties in to anything you have I'll be glad to hear it.