My grandfather, Frantisek Novak was from the Czech Republic, I know of a Stepanka Novakova that lived that was one of our relatives.
My grandfather's father was a Franktisek Novak as well. I know that my grandfather had lived in the midwest and married once before and as far as I knew he has a daughter with his first wife Marie Novak. After he married my great grandmother Mary or Marie Zelechek, that was when my grandfather Frankisek Novak Jr, Anna Novak and another Marie Novak was born. All of them were born in the Czech Republic and moved to Los Angeles area.
Not sure if these are the Novak's that you are looking for but these are my paternal ancestors.