George was the son of Frederick Leiby and Susanna Yerian of Berks County, Pennsylvania. He married to Eva Marie Dunkel. George and Eva moved to Cumberland County, Pennsylvania, in 1792 with 2 of their 3 sons, George, born 1786, and Jacob. John was born in 1793 after the move. Birth years of their 3 daughters is unknown.
Children of George and Eva: George Leiby (1786-unk) Jacob Leiby (1788-1870) John Leiby (1793-unk) Catherine Leiby Eve Leiby Elizabeth Leiby