Trinity Center | Walnut Creek


Donna ColomboDonna Colombo,  Executive Director
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Implementing change is more difficult than strategizing about change. Change begins the moment you ask the first question – make it positive!

When not working, you can find Donna spending time with her husband Richard and their dog, Guiness – Cheers!


Carol Lombard

Carol Lombard,  Operations Manager & Volunteer Director
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Carol joined Trinity Center staff in October 2013.  Since her retirement in 2008 from the corporate world, she has dedicated years of service with Contra Costa Humane Society, as their volunteer coordinator and program director, to helping animals and their caregivers.

Carol brings over 25 years of professional corporate experience to Trinity Center.  She has held operational and administrative management positions with Businessland, Inc., Arran Steel, and Homeowner’s Business Management, both here in California and in the Washington DC area.

Interested in volunteering?  Please contact Carol Tuesday or Thursday mornings: 925.457.3935


Jenny Quijada,  Executive Program AssistantJenny Quijada
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Contact Jenny directly at: 925.457.4533

Jenny joined the Trinity Center in September 2017. She was born and raised in San Diego, California and has her Bachelors Degree’s in Criminology & Justice and Sociology.  Jenny comes with experience in the non-profit sector with volunteer work for organizations that help children who have been neglected and/or abused, as well as individuals living with HIV/AIDS. She is passionate about helping others who may need a lending hand and is grateful to be a part of the Trinity Center family. Jenny would love for you to stop by and say hello the next time you visit the center.

Pam Arend McGrath, Administrative Services & Evening Program Manager
Email LinkPam

Contact Pam directly: 925-457-4678

Pam Arend McGrath will be joining Trinity Center to assist in areas of general support as well as be supervisor of our evening program at the armory. Pam is a mid-westerner who left the family farm to study and travel abroad and all over the U.S. before landing in the Bay Area. She has appreciated experiencing many flavors of life. She is proudly passionate about advocating for vulnerable people and helping create pathways for equity and dignity. Pam has done this through her work in corporate and non-profit finance and management. Whether working on processes, policy or boots on the ground advocacy, she is bolstered by her firm belief that every person is worthy of support and capable of taking their own next step toward success.


Marjolein DassMarjolein Daas Member Services Manager
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Marjolein started as a volunteer at Trinity Center and after a full year she became part of the Trinity Staff in September 2018.

She has a bachelor’s degree in Social Work and after graduation she worked mostly in Forensic Rehab facilities, focusing on substance use prevention and crime prevention. Later on in her role as a Senior Social Worker, she started becoming familiar with coaching and giving guidance to the corporate culture.

Marjolein is enthusiastic about her role as Member Services Manager and is hoping to continue the good work Trinity Center provides. She is excited for new challenges and contacts. Stop by her office the next time you visit Trinity Center!

Clyde Childress
Clyde Childress,  Member Advocate, CATCI

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Contact Clyde Directly at: 925-895-5243

Clyde joined the Trinity Center team in February 2017. Clyde has worked in the non-profit arena for the last 20 years. In that time, Clyde has served the SF Bay Area as a state certified AOD counselor, HIV/AIDS & other communicable diseases medical case manager, homeless/community outreach worker, and operations manager. Clyde is passionate about aiding and working to empower and aid individuals that have been disenfranchised and marginalized in our community. In his off time, Clyde enjoys playing and performing music.

Scott Garvey, Member Advocate, CAODC
Email LinkScott Garvey

Contact Scott directly at: 925.483.4929

Scott became a part of the Trinity Center team in November of 2016 when he was hired part-time for the evening program winter shelter. He then accepted a full time position with Trinity as a Member Advocate in February of 2017.

Scott has a degree in both Addiction Counseling and Sociology. Since his employment at Trinity Center, he has attained his license in Substance Use Disorder Treatment in the state of California.

Scott has tremendous compassion and believes everyone deserves to be treated with respect. He is an advocate for giving second chances, and is eager to assist with the Trinity Center mission of being a doorway to opportunity for all those in need. Please feel welcome to introduce yourself to Scott the next time you visit the Trinity Center!


Luke Keenan

Luke Keenan, Member Advocate
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Contact Luke directly at: 925.483.4928

Now that Luke is a full time Member Advocate he is committed to helping clients even more and is a strong advocate for those in need. Luke is a Certified Crisis Worker (AAS) and has volunteered at the Contra Costa Crisis Center (211) since September 2015. Prior to that he was also a volunteer and stipend worker at San Francisco Suicide Prevention for 5 years.Luke joined the Trinity Center Team full time in September 2018 as Member Advocate. He has been a volunteer at Trinity Center since November 2016 helping with Front Office Services, meeting clients basic needs, answering phones and ensuring that clients receive their mail.

Luke also has a strong background in the corporate world, primarily focusing on the best possible client care and he is bringing those skills to Trinity Center.


Patty Purvis-Thielman

Patty Purvis-Thielman, Front Desk/Receptionist 
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Patty joined Trinity Center in April 2019. Recently retired after 15 years with the Acalanes Union HSD, she was their Technology Help Desk and Webmaster.  Working for over 40 years in technology support, she has fine-tuned customer support skills.   Since her retirement from the school district she has worked as a receptionist for a local car dealership.  She strongly believes in the inherent worth and dignity of every person and is excited to find a new “work home” here at Trinity Center.

Kevin Sugrue

Kevin Sugrue, Operations Assistant
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Kevin manages the daily food program at Trinity Center.  Most often you can find him in the kitchen, preparing meals, stocking supplies and helping members with breakfast and lunch.

Kevin is formerly homeless.  He began volunteering for Trinity Center in Winter 2013.  When a part-time position at the Trinity Center became available, Kevin applied for and secured the position. Subsequently, he was offered a full time role as Operations Assistant. His employment has empowered  him to purchase a used car and to secure and sustain an apartment in the bay area. Kevin always appreciates food and other kitchen donations-


Tommy Edwards, Operations Assistant Tommy Edwards
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Tommy began volunteering his time with the Trinity Center in 2015 and was hired as a staff member for Trinity’s first winter shelter. Tommy has previous experience working closely with adults whose lives have been burdened by substance abuse and other addictions. He is passionate about missionary outreach, having just returned from his second trip to Haiti where he helped construct an orphanage. Tommy loves serving the Trinity Center members and managing the generous donations from the community. Look for Tommy the next time you stop by with donations!




(925) 949-8712
Mailing Address:
1924 Trinity Avenue, Walnut Creek, CA 94596

1271 S. California Blvd., Walnut Creek

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