Hi. Thank you for responding to my message. Henry/Henri Modaff was my grandmother's (Helen Modaff 1903-1978), father. Henry was from Luxembourg. He married Kathryn Herff. Their children were/are: Louise, Margaret, Nicholas, Frank, Helen (my grandmother), Elizabeth "Elsie", Julius and Mary. The lived in the Aurora area. Helen Modaff 1903-1978 married Anthony J. Poss in 1926. Any additional information you can provide regarding Henry and any of his siblings would be greatly appreciated.