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Team Rosemount

Rosemount Team

Board of Directors

The Rosemount Board of Directors is comprised of community members with expertise in finance, law, community service, and early childhood education. The Board governs the business and affairs of Rosemount Center.

Claire Henderson

Fundraising Consultant

Vernon Kelley

Community Member

Ronaldo Rotter

Former Principal Auditor, Inter-American Development Bank

Cora Tekach

Attorney, Tekach Law Firm

David Ware

Partner, McKinsey & Company

Mary Lee NIckel

Retired Early Childhood Director, Washington Episcopal School

Management Team

Rosemount Center staff work in classrooms, as home visitors, and in administrative positions. We believe in a team approach to providing services to meet the needs of parents and children in all the programs.

To contact a staff member, email info@rosemountcenter.com with the staff member’s name in the subject line and your email will be directed accordingly.

Jacques Rondeau

President and Chief Executive Officer

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Martha Johnson

Chief Operating Officer

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Gustavo Martinez

Health/Nutrition Services Manager

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Cornett Roberts-Njoku

Program Director

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Ann Marie Schaeffler

Deputy Program Director for Education

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Marlen Torres

Family & Community Partnership Manager

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Isela Viera

Home-Based Program Coordinator

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Sheila Madrid

Enrollment Coordinator – Head Start & OSSE

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Eileen Gaffigan

Finance Manager Consultant

Marguerite Nutter

Development Manager

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Alex Cooper

Development Associate, Events and Communications

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Jacques Rondeau

Jacques Rondeau, President and Chief Executive Officer, is responsible for all operations of the Rosemount Center. He worked as the Staff Director and Committee Clerk for Council member At-Large Carol Schwartz in the District of Columbia Council from 1997 to 2001, and was the Deputy Staff Director for the Moynihan Commission on Protecting and Reducing Government Secrecy from 1995-1997. Mr. Rondeau, a retired United States Air Force Colonel and Command Pilot, served from 1968-1994. He received his B.S in Finance from Boston College and his M.A. in National Security Affairs, Middle East, and sub-Saharan Africa-Arabic from the Naval Post graduate School.

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Martha Johnson

Martha Johnson, Chief Operating Officer, acts as the deputy to Mr. Rondeau. Before joining Rosemount in 2003, Ms. Johnson served as Director of Development for Washington Episcopal School. She is a graduate of the University of Michigan with a BMus and a MMus in music, and has taught in the Michigan public schools. She has a second master’s degree from The American University in arts management, is a former Arts-In-Education Fellow at the National Endowment for the Arts, served as Development Director for the Cathedral Choral Society at Washington National Cathedral, and was a founding board member of the Children’s Chorus of Washington. She has earned a Nonprofit Management Executive Certificate from Georgetown University’s Center for Public and Nonprofit Leadership, completed HR management coursework utilizing the Society for Human Resource Management (SHRM) Learning System, and is a Certified Fundraising Executive (CFRE). Ms. Johnson is a Master Trainer for the Association of Fundraising Professionals (AFP) Faculty Training Academy. Ms. Johnson previously served as Rosemount’s Deputy Chief Executive Officer and Chief Development Officer before being promoted to COO in August 2023.

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Gustavo O. Martinez

Gustavo O. Martinez, Health/Nutrition Services Manager, has been a member of the Rosemount staff since April 1991. He was hired as a Family Partnership Specialist, promoted to Health Coordinator and became Rosemount’s Health Services Manager in 1995. Mr. Martinez is responsible for overseeing the health and nutrition of Rosemount’s home-based and center-based children and staff. He also manages safety regulations for the Center. Mr. Martinez is a graduate of University of San Simon in Bolivia SA, where he received his degree in Medicine and Surgery. He studied Pediatrics for three years at the Catholic University of Chile and served as the Medical Student’s Director of The Toxicology Clinic “Guillermo Uribe Cualla” in Bogotá, Colombia. Mr. Martinez has published a book entitled ” El Cuidado de la Diabetes.”

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Cornett Roberts-Njoku

Cornett Roberts-Njoku, Program Director, joined Rosemount’s program staff in March 2013. Previously, Ms. Roberts-Njoku oversaw the daily operations of ten early childhood education centers of 300 children and 84 staff in accordance with the Department of Health, Office of the State Superintendent of Education, DHHS and EHS and Head Start Performance Standard requirements. She is the founding member of the Immunization Coalition for the District of Columbia. At Rosemount she is the director of programs and also provides leadership to Early Head Start/Head Start health, disabilities, mental health and family and community services for center and home-based managers. Ms. Roberts-Njoku earned a Medical Technology diploma at the Georgetown School of Arts and Sciences in 1976, a certificate in Gerontology at George Washington University, and a Bachelor of Science in Health Education/Public Health and Masters in Public Administration from the University of the District of Columbia. She is a current mayoral appointee to the Ryan White Planning Council for the Washington Metropolitan Area, as well as vice chair for the by-laws, policies and procedure committee. 

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Ann Marie Schaeffler

Ann Marie Schaeffler, Deputy Program Director for Education, came on board in September 2016. She is responsible for curriculum planning and program monitoring for classrooms and the Early Head Start home-based program. Ann Marie works with teachers and service area managers to ensure adherence to state and local requirements and best practice in early childhood education. She has a background in early childhood special education and worked for five years with the DCPS early childhood program to implement curriculum and provide professional development. She served as an early Intervention Coordinator both for Fairfax County Head Start and DC’s Strong Start Program. She received her B.A. in Psychology for the University of Connecticut and a M.A. in Developmental Psychology from George Mason University.

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Marlen Torres

Marlen Torres, Family & Community Partnership Manager, began working at Rosemount in September 2005 as a Home Visitor. Ms. Torres now supports families in their role as caretakers and educators, and provides bilingual referrals to community resources according to their needs. Because of her experience working directly with families in their homes, she understands the great challenges many of Rosemount’s children face. As Family Services Advocate, Ms. Torres is responsible for coordinating services for all of Rosemount’s poverty level children. She engages families in various events and activities throughout the year. Ms. Torres received an Associate degree in Nursing from the National Institute for Learning in Colombia and an Associate degree in Early Childhood Education from the University of Cincinnati. Ms. Torres also has two Child Development Associate certifications – for Infants & Toddlers and for Preschool age children.

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Isela Viera

Isela Viera, Home-Based Program Coordinator, began working at Rosemount in 2013 as a Home Visitor in the Home-Based Program.  She transitioned to a Center-based teaching position in 2014.  Ms. Viera grew up in El Salvador where she earned a BA in secondary education from the Universidad Pedagogica and moved to the U.S. in 2002.  She holds a Child Development Associates Certificate and also has earned an Associates degree in arts education from the University of the District of Columbia.

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Sheila Madrid

Sheila Madrid, Enrollment Coordinator – Head Start & OSSE,  joined Rosemount in January 2022. Ms. Madrid earned her Bachelor’s Degree in Industrial Relations from the Technological University of Honduras. She is responsible for enrolling children from birth to five years of age, updating the enrollment database, and ensuring that families are eligible to receive services through Rosemount’s Head Start program and through the District of Columbia’s Child Care Subsidy/Voucher Program.

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Marguerite Nutter

Marguerite Nutter,  Development Manager, joined the center in October 2024 and is responsible for stewarding and engaging Rosemount’s donors and expanding the annual fund. She’s spent the bulk of her career in development and fundraising and has worked at WAMU, The Intercept, Society for Ecological Restoration and NPR. She is a graduate of Indiana University and has her master’s degree from The Ohio State University. 

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Alex Cooper

Alex Cooper, Development Associate, Events & Communications, joined Rosemount in October 2024.  His role is new to the Development Team and focused on creating an engaging communication process including external, internal and social media communications in additon to making impactful and unique events for Rosemount’s development, fundraising and community engagement efforts.  Alex has a background in non-profit and association management alongside a 20 year long career in events in both the corporate and non-profit industries.  

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