Exhibit 1.1(b) Nuveen Unit Trusts, Series 56 Trust Indenture and Agreement Dated: July 30, 1999 This Trust Indenture and Agreement by and between John Nuveen & Co. Incorporated, as Depositor and The Chase Manhattan Bank, as Trustee, sets forth certain...Trust Indenture and Agreement • July 30th, 1999 • Nuveen Unit Trusts Series 56
