Donna Klagholz » Management Staff Go back to directory.Add to Address Book. Donna Klagholz Accounting ManagerWork Gilpin Hall 1101 Gilpin Avenue Wilmington Delaware 19806 United StatesworkWork Phone: 302-504-0822workWork Email: dklagholz@gilpinhall.orgINTERNETCategories: Management StaffUpdated 3 years ago.