2004 December 23-28: Temple, Texas -- Christmas with daughter Julia and family.

2004 December 8-12: Paris and Orleans, France -- Attended the symposium on Biogeochemical Cycling of Iron: Green Rust and Fougerite, sponsored by the French Academy of Sciences.

2004 November 15-16: Aveiro, Portugal -- visited and presented a seminar in the Department of Geosciences at the Universidade de Aveiro.

2004 November 7-12: Châtenay-Malabry, France -- Attended organizing committee meeting for upcoming conference titled “Clays in natural and engineered barriers for radioactive waste confinement (Tours-2005)."

2004 November 1-4: Seattle, Washington -- Attended the annual meetings of the Soil Science Society of America.

2004 October 18-20: Oak Ridge, Tennessee -- Attended the Field Research Workshop, sponsored by the Department of Energy.

2004 October 7-11: Logan, Utah -- Visited daughter Tawnya and family

2004 August 10-13: Toronto, Canada -- Visited son, Aaron, and family

2004 August 6-9: Princeton, New Jersey -- Visited daughter Trisha and family

2004 June 26-30: Temple, Texas -- Visited new granddaughter, Elise Mattson

2004 June 18-22: Richland, Washington -- Attended annual meeting of The Clay Minerals Society.

2004 May 8-13: Danbury, Connecticutt -- Visited new grandson, Joshua Erickson

2004 May 15: Whitewater, Wisconsin -- Attended B.A. graduation of son-in-law John Burns

2004 May 16: Urbana, Illinois -- Attended Ph.D. graduation and performed hood investiture of son-in-law William Mattson

2004 March 14-17: Warrenton, Virginia -- Attended Department of Energy Principal Investigators' Meeting.

2004 January 11-18: San Antonio, Texas -- Attended the Bouyoucos Conference on Electron Transfer and Environmental Biogeochemistry of Iron in Clay Minerals.

2004 January 18: San Antonio, Texas -- Attended first meeting of the Group on Iron Redox in Phyllosilicates.itReg

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