Print this page Geophysical Laboratory on Facebook Geophysical Laboratory on Flickr Click for RSS

Support Staff

John Armstrong
Microbeam Specialist
Phone: 202-478-8918

John Armstrong oversees the electron microprobe and electron microscopy laboratories at the Carnegie Institution of Washington. His research includes development of the physical correction algorithms and analytical procedures for high accuracy quantitative analysis with electron microbeam instruments and their application to the characterization of geological and planetary materials. He has developed, operated and supervised microprobe laboratories at NIST, Caltech and Procter & Gamble. He also has experience with several generations of analytical scanning electron microscopes, analytical scanning transmission electron microscopes, ion microprobes, UHV Auger electron microprobes, as well as x-ray emission spectrometers, x-ray diffraction and x-ray fluorescence equipment. A past president of the Microbeam Analysis Society and recipient of its Presidential Science Award, he regularly lectures at the advanced x-ray microanalysis summer schools at Lehigh University and holds adjunct faculty positions at American University and Pepperdine University (DC campus) where he teaches earth science and astronomy. He received his PhD in geochemistry from Arizona State University in 1978 and a B. Sc. In chemistry from Loyola Marymount University.


Maceo Bacote
Building Engineer
Phone: 202-478-8302

Maceo joined GL in July 1993 to work as a DC 3rd class steam engineer, whose duties include the daily maintenance and repair of the HVAC system and mechanical equipment at BBR campus. He has resided in Clinton, Maryland for fourteen years with his wife and three children aged twenty-one, twenty-three and twenty-six.


Gary Bors
Facility Manager
Phone: 202-478-8302

Gary joined Carnegie in 1977 and is the Facility Manager of the Broad Brand Road campus. His duties include the daily operation and maintenance of the cast iron sectional low pressure steam boilers, centrifugal and air-cooled water chillers, and the DX AC unit.


Katherine Crispin
MIcrobeam Specialist
Phone: 202-478-8986

Katherine maintains the (FIB-FESEM) Focused Ion Beam Field Emission Scanning Electron Microscope and also assists users on the SEM and Microprobe. She researches new techniques and applications involving the microbeam instruments and collaborates on research involving pallasite meteorites. She is a Director of the MicroAnalysis Society, and an Associate Editor of American Mineralogist. Her previous research was focused on diffusion in lower mantle minerals where she investigated the effect of crystal field stabilization energy on diffusion rates of transition metals in periclase. She received a Ph.D. in Geological Sciences from Case Western Reserve University and a B.Sc. in Chemistry from Cedar Crest College.


Pablo D. Esparza
Maintenance Technician
Phone: 202-489-4512

Pablo came to Carnegie from Jasco Guerrero, a small picturesque town in Mexico well-known for its silver mines. He worked there on construction jobs. Pablo handles all packages and mail for the campus as well as helps with maintaining facilities for both departments.


Yael Fitzpatrick
DCO Science Program Assistant
Phone: 202-478-8818

Yael Fitzpatrick joins the Geophysical Laboratory as the new Science Program Assistant for the Deep Carbon Observatory (DCO). She is an integral part of the Secretariat team that manages the DCO and provides professional, administrative, and organizational support for the Secretariat. Previously, Yael worked for the American Association for the Advancement of Science (AAAS)/Science where she lead creative effort and managed the art department for preeminent international weekly journal Science and its two sister journals, Science Signaling and Science Translational Medicine. A109


Dyanne Furtado
Staff Accountant

Dyanne is the Geophysical Laboratory's Staff Accountant. She is responsible for monitoring and tracking expenditures associated with the Lab's new Federal grants, as well as providing financial reports to the scientific staff. Prior to joining Carnegie, Dyanne worked for over 13 years at the German defense manufacturing company, Heckler & Koch as a Staff Accountant. She obtained a bachelor's degree from Gallaudet University in Accounting in 1986, and has lived in Virginia since 1989.


Paul Goldey
Electronics/Microbeam Specialist
Phone: 202-478-8456

Paul has more than 20 years of experience maintaining scientific instruments and laboratories as well as supporting students, faculty and staff in their research. He has worked at several local universities in laboratories for high energy physics, thin film deposition and characterization, and nanotechnology. Previously, Paul worked at the Advanced Electronics Laboratory of Georgetown University. Earlier he spent several years at CERN in Geneva while affiliated with the University of Maryland. Paul is in charge of designing and maintaining scientific instruments, including helping John Armstrong with maintenance and assisting users of our microbeam facilities.


Shaun Hardy
Phone: 202-478-7960

Shaun Hardy manages the joint research library of the Geophysical Laboratory and DTM and oversees the departments' archives. As campus librarian he designs and implements information programs and services to support the departments' scientific, administrative, and technical staff. He holds B.S. degrees in geological sciences and physics from the University of Rochester and an MLS degree (library and information science) from the State University of New York at Buffalo.


Stephen Hodge
Instrument Maker
Phone: 202-478-8921

Stephen Hodge is an instrument maker for the machine shop at the Geophysical Laboratory. He is responsible for the manufacture/repair of diamond anvil cells, high pressure vessels and their components, laser array equipment, fixtures/devices etc., per the scientists needs. Stephen works to extreme tight tolerances in a wide variety of exotic and aerospace materials.


Morgan Phillips Hoople
CDAC and EFree Administrator/Assistant
Phone: 202-478-8966

Morgan Phillips Hoople is the Project Administrator for the Carnegie/Department of Energy Alliance Center (CDAC), the Energy Frontier Research in Extreme Environments Center (EFree), and the Assistant to Russell J. Hemley. She has been working at Carnegie since July of 2004. She received her B.A. in History from DePauw University in 2002.


Bill Key
Building Engineer
Phone: 202-478-8302

Bill began working at GL in 1983 as caretaker of the old building at BBR. His main duties included looking after the grounds, SMO and foundry on the BBR campus. In 1989, he became a licensed engineer whose responsibilities included maintenance and repair of the HVAC system and mechanical equipment. Prior to working at Carnegie, Bill served in the Air force with the 82nd Airborne division and also worked in a hardware store for five years after completing high school.


Danielle Appleby Kifah
Assistant to the Director
Phone: 202-478-8906

Danielle Appleby is responsible for providing administrative support to the Director of the Geophysical Laboratory. She also offers assistance with long-term planning and goal setting. Prior to joining Carnegie in 2007, Danielle worked as Consultation Executive for one of the top planning and PR firms in London, Local Dialogue LLP, where she led the consultation on large-scale public sector projects for the Mayor of London including "Crystal Palace Park Regeneration," the "Olympics 2012," and "Ocean New Deal for Communities." She holds an M.A. in Material and Visual Culture from University College London, U.K. (2004).


Jeff Lightfield
Phone: 202-478-8903

Jeff Lightfield is responsible for the business operations of the Geophysical Laboratory. Prior to joining GL in February 2006, Jeff worked for eight years at Carnegie's headquarters; first as a Financial Accountant and then as the Deputy Financial Manager. Earlier in his career Jeff spent several years working in public accounting and served as the Director of Finance for Citizens Development Corps (CDC). Jeff received a Bachelors of Science in Economics from the Wharton School of Business at the University of Pennsylvania and is a Certified Public Accountant.


Victor Lugo
Shop Foreman
Phone: 202-478-8922

Victor Lugo is the Geophysical Laboratory Shop Foreman. He earned his skills as an Instrument Maker at a three-year machinist program in Mexico City. Victor started working in production for a pharmaceutical facility and gained experience working for an aerospace contractor. He manages activities in the shop and supports the high pressure lab, operating and producing scientific instruments.


Andrea Mangum
Deep Carbon Observatory Program Manager
Phone: 202-478-8816

Andrea Johnson Mangum joined the the Deep Carbon Observatory (DCO) in June 2010. She manages the DCO Secretariat—bringing together an international and multidisciplinary group of researchers to address the many outstanding questions surrounding the nature of carbon in Earth's interior. She will also address issues relating to the DCO’s developing strategies for communication, education, and outreach. Andrea, who has a M.S. in geology and experience as a science writer, previously worked for over 15 years in program management with the Ocean Drilling Program and Integrated Ocean Drilling Program.


Agnes Mao
Assistant to Ho-kwang Mao
Phone: 202-478-8960

Agnes Mao received her BA degree in Diplomacy from National Chen-Chi University, Taipei, Taiwan in 1966. She obtained her MLS degree in Library and Information Sciences from University of Maryland in 1970. From 1970 to 2000, she was working at various posts in the Collection Management Division at the George Mason University, VA. After her retired from 30-year librarian career at GMU, she works as a volunteer assistant to Dave Mao at the Lab.


Quintin Miller
Building Engineer

Quintin Miller began working at the BBR campus on April 1, 2011 as a Building Engineer Apprentice. Prior to joining Carnegie, he worked as a mechanic's helper at Gaghan Mechanical, Inc. in Alexandria.


Trong Nguyen
Assistant Controller
Phone: 202-478-8904

Trong came to the Geophysical Laboratory to join the new Support Staff in April 2006. rong worked as Financial Accountant at the P St. headquarters for 13 years before working at the Lab. He graduated from the School of Business Administration of George Mason University, and worked for the Fairfax County Public Schools before being employed by Carnegie. He lives in Annandale, Virginia with his wife and two children.


Gefei Qian
IT/IS Administrator
Phone: 202-478-8970

Gefei joined the Geophysical Laboratory  IT group in September 2008. He has been working in IT administration since 1990 and his interest in programing dates back to the 80's. Gefei is experienced in HPC computing, CISC system programing, software engineering, instrument control, netbotics, and IT services. He is enthusiastic to provide the GL staff with various excellent IT-related services.


Michelle Scholtes
Web/Departmental Assistant

Michelle Scholtes joins the Geophysical Laboratory as the webmaster and departmental assistant. As the webmaster, Michelle is in charge of website content management and development, online newsletter production, social media, conference news coverage, and more. Departmentally, she acts as the seminar coordinator, outreach and event planner, gas cylinder process/office manager, and administrative assistant. Michelle has a broad range of skills including content management systems and expertise in implementing social media and marketing campaigns. Prior to joining Carnegie, she worked in administration in the real estate industry and telecommunications and advertising consultancies. She holds a B.A. in Public Relations from the University of Maryland, College Park (May 2009).


Gabor Szilagyi
Systems Administrator
Phone: 202-478-8973

Gabor Szilagyi has been appointed full time Systems Administrator to work alongside Gefei Qian. Gabor will focus on IT network and infrastructure support at the Geophysical Laboratory (GL) within the broader BBR IT support group. During the past year, Gabor has worked part time at GL and P St., and has been a great asset to our campus. We congratulate Gabor in his new role at GL and BBR.


Marilyn (Helen) Venzon
Accounts Payable Specialist
Phone: 202-478-8905

Helen started her first job as a Educational Specialist at the Cultural Office of the Embassy of Egypt. She then moved to Computer Sciences Corporation in Falls Church, Virginia, where she worked as a Sr. Human Resources Specialist for 8 years. She came to Carnegie in 2007. Helen graduated from Maryknoll College in the Philippines.


Merri Wolf
Library Technical Assistant
Phone: 202-478-7962

Merri Wolf's job as Technical Assistant at the Broad Branch Road Library since 1992 is the first position she has stayed at more than four years. Merri attributes her perpetual interest in her work to the people she has met here and the never-ending challenge and rewards of scientific endeavor she has had the privilege to observe. She had worked for doctors, lawyers, publishing and advertising executives, retail companies at the administrative and sales levels, nonprofits and professional sports before she came to Carnegie.