What I meant was that the couple in question appear on the index and on the data that appears below the original image. They do not seem to appear on the original image. So I am wondering where ACOM got their names. I checked the page before and after and they weren't there either. I hope that makes sense!
If you want to check it out, I searched for Herman Pollack, Philadelphia, in the 1880 census. He and wife are living with the Herzbergs. They do appear with them in the 1870 census.