Fridolin Heer (July 30, 1834 – September 19, 1910) was a Swiss-born and trained architect who immigrated to the United States in 1864 and set up a practice in Dubuque, Iowa shortly thereafter. He was joined in his practice by his son, Fridolin Heer Jr.
^Gallagher, BVM, Mary Kevin (ed.) (1987). Seed/Harvest: A History of the Archdiocese of Dubuque. Duduque, Iowa: Archdiocese of Dubuque Press. p. 44. {{cite book}}: |first= has generic name (help)