Parents of the couple are Rod and Kerri Petersen and Richard and Lois Hessenius, all of Le Mars.
Allie Petersen of Le Mars was her sister's maid of honor.
Best man was Bryant Mangler of Farley, friend of the bridegroom.
A reception for 175 guests followed the ceremony at the Prairie Rose Country Club at Brunsville.
The bride is employed as a radiation therapist at Wendt Regional Cancer Center at Finley Hospital in Dubuque.
The bridegroom is currently student teaching in Dubuque, and will graduate from December from Loras College with a bachelor of arts degree in elementary education.
Following their wedding trip to Door County, Wis., the couple is at home in Dubuque.