I am up to 48, please keep updating if you have any that I am missing.
This is just what I can think of off the top of my head and simple research...
Parks (IC West)- Bethune Cookman
Dileo (IC West)- Central Michigan
Lane (IC West)- Central Michigan
C. McCaffery (IC West)- Iowa
P. McCaffery (IC West)- Iowa
Wieskamp (Muscatine)- Iowa
Kriener (Spirit Lake)- Iowa
Pemsl (Dub. Walhert) - Iowa
Till (Dub. Walhert)- Iowa
Baer (Bett.)- Iowa
Bohannon (Linn-Mar)- Iowa
Ash (Mt. Vernon)- Iowa
Vanderloo (Sioux City East)- Iowa
Jacobson (Waukee)- Iowa St.
Boothe (Central Decatur)- Iowa St.
Steyer (Ames)- Iowa St.
Ernst (Clinton)- Drake
Gholson (Newton)- Drake
Robbins (Sunrise Christian via Davenport)- Drake
Samake (Grand View Christian)- Drake
Sturtz (Newton)- Drake
Henry (Oskaloosa)- UNI
Green (Cedar Falls)- UNI
Wolf (Cedar Falls)- UNI
Conry (Wat. West)- UNI
Gauger (Indianola)- UNI
Krogmann (West Delaware)- UNI
Haldeman (Western Dubuque)- UNI
McDonnell (Dub. Senior)- UNI
Carter (Dub. Senior)- UNI
Phyfe (Waverly)- UNI
Mimms (CR Xavier)- South Dakota St.
Dentlinger (Kuemper Cath.)- South Dakota St.
Wilson (DSM Hoover)- South Dakota St.
Brown (Spirit Lake)- North Dakota
Hazekamp (Bishop Heelan)- North Dakota
Hutchenson (Linn-Mar)- Albany
Carton (Bett.)- Ohio St.
Van Soelen (Waukee)- Air Force
Vander Zwaag (Johnston)- Air Force
Kinrade (Maquoketa)- Air Force
Johnson (Waukee)- UMBC
Printy (Linn-Mar)- Western Michigan
Kellogg III (Ames)- UW Green Bay
White (Ames)- UMKC
Sissoko (Grand View Christian)- Illinois St.
Arrington (Lewis Central)- Western Illinois
Please add to the list. I was picking schools that we usually have Iowa kids go to.