Please Remember Barbara Dieffenbach in Your Prayers St. Thomas Newsroom January 5, 2011 Please remember in your prayers Barbara Dieffenbach, mother-in-law of Denise Dieffenbach, director of Multicultural Student Services. Barbara, 77, died Monday, Jan. 3. Visitation and funeral service will be held at Morris Nielsen Funeral Chapel, 6527 Portland Ave. S., Richfield. Visitation will be held from 4 to 7 p.m. Thursday, Jan. 6. The funeral service will be held at 11 a.m. Friday, Jan. 7 .