Tumilson joined the Navy in 1995 and was posthumously awarded the Purple Heart and Defense Meritorious Service Medal, in addition to numerous medals he won throughout his service. He is survived by a large family, including his parents, two sisters and many extended relatives.
"Even though you were the baby of the family, I want you to know how much I looked up to you," said one of his sisters, speaking through tears at the funeral. "You always showed so much strength, courage, determination and selfless love."
In a statement, Tumilson's family said that he "died living his dream as a Navy SEAL."
"Jon was a Navy SEAL and he was proud to die this way—for his country and for the people he loved so much," his family wrote. "We respect the nature of their jobs and the need to protect these men and women so they can continue to serve our nation; therefore, we will not provide details of Jon's military service."
Tumilson's family has started a memorial fund and contributions can be made to Frogman 238 Memorial Fund, First Security Bank and Trust, 201 West Main Ave., Rockford, IA 50468.