St. La Salle Pastorate
- Provides Mass times, bulletin, information about sacraments, confirmation program, and staff directory.
- http://lasallepastorate.googlepages.com/

City-Data.com: Holy Cross, Iowa
- Profiles housing, population demographics, jobs, weather and climate tables. Contains a list of area hospitals, schools, airports, radio and TV broadcast stations, charts and maps.
- http://www.city-data.com/city/Holy-Cross-Iowa.html

Auderer Sheep Farms
- Specializes in cross breeding systems using Polypay, Friesian, Columbia and Romanov breeds. Includes sales list and photographs.
- http://www.auderersheep.com/

Wikipedia: Holy Cross, Iowa
- Encyclopedia article features geography, history and demographics of this community in Dubuque County.
- http://en.wikipedia.org/wiki/Holy_Cross,_Iowa