I think this name has Slovak connections. Do you know the village from which your ancestors came from? There are listed the family name of Hritzko from Jaklovce, Slovakia. Actually that was when Jaklovce was in Szepes County under the Austria-Hungary Empire, prior 1918. I have looked in the LDS micro film under Jaklovce and found many Hritzko families, also in the 1869 Magyar Cenus for that village. My Paternal section of my family tree lists Hritzko back in 1830. Maybe there is a connection here, give us some more info about the possible villages your people came from. Have you checked Ellis Island records?