Hamm Family from the Hudson River Valley

My father, George Oscar Hamm Jr.and his two sisters were born in the Stockport, NY area. Father born 7-9- 1910 d.9-18-1996 ,Beatrice Mae Hamm b. 1913 Ohio,d. 7-26-1959,Thelma Elva Hamm b.4-5-1916 d.9-14-1987