I believe I'm looking for this same family! My dad is John Richard St. Clair.... his father, John Arthur, or "Arthur" is how he was known. He was born to Myrtle Corzine and Louis Nicholas St. Clair. Myrtle later married a Burns and had several more children. What I'm SPECIFICALLY looking for is more information on Louis Nicholas St. Clair. I'm told he and Myrtle married somewhere near Kingfisher as she perhaps had some land there before their marriage. I am also told there may be some connection to an Indian tribe - but I cannot be sure on this. Any information you can share would be much appreciated! Also, I believe his father's name is Henry.