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Geraldine S. James, Ed.D.

Assistant Professor of Foundations and Educational Research

location Office Location: SOE 208G
Mailing Address: UOG Station, Mangilao, Guam 96923
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Dr. James is an Assistant Professor in the School of Education and the Program Chair for the Masters in Education School Administration and Supervision Program. She is also an Adjunct Professor for Argosy University/Hawaii’s doctoral education programs teaching graduate students in Guam, Hawaii, and American Samoa and chairing doctoral dissertation committees. Before coming to the University of Guam, Dr. James was an Associate Dean at the Guam Community College. Her professional career also includes over 25 years with the Guam Department of Education as a high school math teacher, school administrator, and Deputy Superintendent of Curriculum and Instructional Improvement.


  • B.A., Secondary Education – Mathematics, University of Guam
  • M.Ed., University of Portland (Ore.)
  • Ed.D., Educational Leadership, Argosy University Hawaii



  • Master School Administrator, Guam Department of Education
  • Master Educator, Math 6-12, Guam Department of Education
William Jeffery, Ph.D.

Associate Professor of Archaeology and Micronesian Studies

location Office Location: HSS 120A
Mailing Address: UOG Station, Mangilao, Guam 96923
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 Dr. Bill Jeffery has been working as a maritime archaeologist for over 30 years. In 1990, Bill was a member of an Australian team that trained some of China’s first maritime archaeologists. Since 2002, he has been working on various aspects of maritime archaeology in Hong Kong and more recently the training of a number of local divers, and the implementation of maritime archaeology research and excavation projects, the first such projects to be conducted in Hong Kong. Bill’s background in maritime archaeology is in Australia, where after studying with the Western Australian Museum, he formulated and coordinated a maritime heritage program for a state government agency, Heritage South Australia from 1981-2001. He went onto working with the Federated States of Micronesia National Historic Preservation Office and completing a PhD in maritime archaeology at James Cook University. He is a consulting maritime archaeologist to ERM Hong Kong, and Research Associate with the Hong Kong Maritime Museum. He has implemented various types of archaeological and heritage investigations in Australia, the Pacific region, Hong Kong, Sri Lanka and various countries in Africa. Bill has lectured in cultural heritage preservation, maritime archaeology and conducted maritime archaeology field schools with Flinders University, Chinese University of Hong Kong, University of Guam and James Cook University in addition to teaching Nautical Archaeology Society (NAS) training programs in eleven different countries.


Some current activities and project work can be seen at:



AN 462, Spring 2016: Advanced Field Methods Archaeology



  • A.D., Surveying, University of South Australia
  • Graduate Diploma, Maritime Archaeology, Curtin University (Australia)
  • Ph.D., Maritime Archaeology, James Cook University (Australia)
Colleen Jennings, Ph.D.

Assistant Professor of Vocal Performance

location Office Location: EC 118A
Mailing Address: UOG Station, Mangilao, Guam 96923
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Colleen Jennings recently completed the Doctor of Musical Arts degree at The University of Iowa and is pleased to join the Fine Arts faculty at the University of Guam. She comes to UOG with diverse national and international experiences. Previously, Colleen taught at Mahidol University in Bangkok, Thailand.  

She has sung for King Bhumibol Adulyadej in a command performance featuring his compositions. She appeared with the Thailand Philharmonic Orchestra in performances of Beethoven’s 9th Symphony and Mahler’s 4th Symphony. Colleen sang in Myanmar on a US Embassy sponsored concert tour and sang for the heads of state of the nations of Asia and Oceania at the ASEAN Summit. She also sang Donna Anna in Don Giovanni under the direction of Georges Delnon in Milan, Italy.  

She appeared as Mimì in The University of Iowa School of Music’s 100th Anniversary production of La Bohème. Colleen appeared with Cedar Rapids Opera Theatre as Young Artist in productions of L’elisir d’amore, Madama Butterfly and Carlisle Floyd’s Susannah, where she also served as the understudy for the title role.Colleen appeared with the Jackson Symphony Orchestra of Jackson, Michigan singing Italian arias and duets. Colleen has appeared as soprano soloist in Westminster Fine Arts series productions of Poulenc’s Gloria, PDQ Bach’s The Seasonings, Orff’s Carmina burana and the American premiere of John Tavener’s Fall and Resurrection.

Colleen received a Master of Music degree in Voice Performance from Drake University and a Bachelor of Arts from the College of St. Catherine.


  • B.A., Sociology, The College of St. Catherine (Minn.)
  • M.M., Vocal Performance and Pedagogy, Drake University (Iowa)
  • DMA, Vocal Performance and Pedagogy, The University of Iowa
John W. Jenson, Ph.D.

Director and Chief Hydrogeologist / Professor of Environmental Geology

location Office Location: WERI 114
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.S., Economics, U.S. Air Force Academy (Colo.)
  • M.A., Economics, University of Michigan
  • Ph.D., Geology, Oregon State University
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Accountant Technician II

location Office Location: Administration Business Office Building
Mailing Address: UOG Station, Mangilao, Guam 96923
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Adjunct Instructor of Women & Gender Studies and Sociology

location Office Location: HSS 205
Mailing Address: UOG Station, Mangilao, Guam 96923
  • tel Tel: (671) 735-2870
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  • B.A., Psychology and Philosophy, Elon University (N.C.)
  • M.Ed., Counseling and Guidance, University of Guam
James Ji

Assistant Professor of Management

location Office Location: SBPA 232
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.A., Asian American Studies, University of California, Los Angeles
  • PMBA, University of Guam
  • MAT, University of Guam
  • DBA, Management, Argosy University, Hawaii


Dr. James Ji Jr. officially joined the University of Guam in August 2020 but has taught courses at UOG since 2013. He is also a licensed realtor and the general manager of J.J. Pacific Development Corp. He previously served as an advisor to the Public Policy Institute under the speaker of the 35th Guam Legislature. 

RESEARch interests

His previous research focused on cultural and generational distinctions regarding commitment levels in management. The primary focus of his research includes new forms of leadership and management with the intention of assisting the public and private sectors on Guam. Other research interests include technology-based education and management, an area that has become more relevant during the COVID-19 pandemic.

Hui Jiang, Ph.D.

Associate Professor of Aquaculture

location Office Location: ALS 215
Mailing Address: UOG Station, Mangilao, Guam 96923
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Research interests

  • The interactive relationship between nutrition, genetics and health in aquaculture practices
  • Implementing environmentally-friendly husbandry technologies
  • Improving nutrient efficiency via shrimp genetic


  • B.S., Ecology and Environmental Biology, Ocean University of China
  • M.S., Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
  • Ph.D., Wildlife and Fisheries Science, Texas A&M University

Selected publications

  • Gong, H., 2017. How does Penaeus vannamei cope with low salinity water? Aquaculture Magazine 43: 68-70.
  • Gong, H., 2017. Enterocytozoon hepatopenaei (EHP): an Emerging pathogen in shrimp aquaculture. Aquaculture Magazine 43: 66-67.
  • Jang, I.K., H. Gong., 2016. Growing marine shrimp in the Sahara Desert. Aquaculture Magazine 42: 54-56.
  • Gong, H., 2015. RNAi in shrimp immune defense system. Aquaculture Magazine 41: 46-49.
  • Gong, H. 2015. Specific pathogen free Penaeus vannamei breeding program at the University of Guam. Aquaculture Magazine 41: 72-73.
  • Gong, H. 2014. Prebiotics in shrimp aquaculture. Aquaculture Magazine 40: 62-64.
  • Gong, H. 2014. Probiotics in shrimp aquaculture. Aquaculture Magazine 40: 60-61.
  • Gong, H., J.W. Brown. 2012. Using yellowfin tuna roe in a shrimp maturation diet. World Aquaculture 43: 48-52.
  • Gong, H., D.H. Jiang, F. Alig, A.L. Lawrence. 2012. Effects of dietary protein level and source on the growth and survival of two genetic lines of specific-pathogen-free Pacific white shrimp, Penaeus vannamei. Aquaculture 338-341: 118-123.
  • Gong, H. 2010. Promoting health management of shrimp aquaculture on Guam and the Commonwealth of Northern Mariana Islands. Asian Fisheries Science 23: 447-461.
  • Ciobanu, D.C., J.W.M. Bastiaansen, J. Magrin, J.L. Rocha, D.H. Jiang, N. Yu, B. Geiger, N. Deeb, D. Rocha, H. Gong, B.P. Kinghorn, G.S. Plastow, H.A.M. van der Steen, A.J. Mileham. 2010. A major SNP resource for dissection of phenotypic and genetic variation in Pacific white shrimp (Litopenaeus vannamei). Animal Genetics 41: 39-47.
  • Gong, H., A.L. Lawrence, D.H. Jiang. 2003. Effect of dietary phospholipids on the choline requirement of Litopenaeus vannamei juveniles. Journal of the World Aquaculture Society 34: 289-299.
  • Jiang, D.H., A.L. Lawarence, W.H. Neill, H. Gong. 2000. Effects of temperature and salinity on nitrogenous excretion by Litopenaeus vannamei juveniles. Journal of Experimental Marine Biology and Ecology 253: 193-209. DOI: 10.1016/S0022-0981(00)00259-8
  • Gong, H., A.L. Lawrence, D.H. Jiang, F.L. Castille, D.M. Gatlin III. 2000. Lipid nutrition of juvenile Litopenaeus vannamei: I. Dietary cholesterol and de-oiled soy lecithin requirements and their interaction. Aquaculture 190: 305-324.
Margaret Johnson, AS

Data & Developed Products Assistant

location Office Location: Dean Circle, House #17
Mailing Address: UOG Station, Mangilao, Guam 96923
Randall D. Johnson, Ph.D.

Professor of Music

location Office Location: Dean's Circle, House #25
Mailing Address: UOG Station, Mangilao, Guam 96923
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  • B.M., B.A., M.M., D.M.A., University of Washington
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