I've seen messages, perhaps yours, about your Capt. Leopold in the Philippines before and found them very interesting, but unfortunately I can't lay claim to any relationship to him.
Since posting my message about Belleville, I've come to learn through Ned Siegel that there were indeed two distince clans of Schucks living in Obermoschel, my own and his who migrated there from neighbouring Odernheim in the 18th century; no bearers of the name Schuck of his line remain there to-day, but his clansmen have intermarried into other families of the town.
I'm afraid that I can't be of much help to you without knowing whether your Leopold was a Moscheler Schuck or not. I can tell you only what was told to me, namely, that Palatine Schucks had migrated into all parts of Germany, and subsequently into other parts of the globe. If you can nail down his point of origin, perhaps I can be more of an assist.