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Martin Foose, son of Victor (Fuss) Foose and Margaretha Koch, was my great-grandfather also. My grandfather, William Thomas Carroll married your grandfather's sister, Anna Caroline Foose. So, your grandfather had to be Frank, Edward, or George Foose ... I can only guess George, as that is your fathers name.
Martin married Caroline Huber, whose parents were Franz Joseph Huber and Sabina Steffan. Martin and Caroline had six children ... Frank Foose, Clara Foose Tighe, George Foose, Anna Caroline Foose Carroll, Genevieve Foose Burns, and Edward Foose.