OSA Staff


Joe Mayock

Executive Director

Joe Mayock has served as the Executive Director of OSA since January 2016. He is the first full-time leader for the park conservancy. Before joining OSA, Joe was the chief marketing officer for a large international law firm based in New York City. Prior to that, he served in leadership positions at large law firms in New York and New Jersey. Joe is leading OSA through a sharpening and expansion of its mission – substantially increasing OSA’s role in maintaining North Brooklyn parks and playgrounds and activating “friends groups” who will “own” their neighborhood park. Joe earned a bachelor’s degree in Ibero-American Studies from the University of Wisconsin-Madison and a master’s degree in advertising from the University of Texas at Austin. He is the co-founder of Abingdon Square Conservancy, a park conservancy in the West Village, and currently serves as treasurer of the board of directors. Joe has served as an advisor to the Christopher Park Alliance and the Four Freedoms Park Conservancy. He is a member of the City Parks Alliance. Previously, Joe was a member of the board of directors of the New York City chapter of the Legal Marketing Association.

Nathan B. Patterson

Development Director

Nathan Patterson is OSA’s first Development Director, and has been working in nonprofit development and fundraising since 2011. Before joining OSA, Nathan served as the Development Manager for GrowNYC, and before that as a Grants Specialist for a social services organization in the South Bronx. Nathan holds a bachelor’s degree in English from Hunter College where he graduated Summa Cum Laude, with departmental honors, and as a Public Service Scholar. He moved from Boulder, Colorado to Greenpoint in 2004 and, with a short exception, has lived in North Brooklyn since. Nathan is an avid and regular user of North Brooklyn parks, a practicing musician, and strong believer in environmental justice.

Konstancja Maleszyńska

Greenpoint Parks Project Coordinator

Konstancja Maleszyńska has served as the Greenpoint Parks Project Coordinator since April 2016. The position, which is a new one for OSA, is responsible for creating a sustainable parks stewardship program in Greenpoint through outreach, recruitment, volunteer and education programming. Konstancja has invaluable local experience in parks outreach. In the summer of 2015, she began volunteering with McGolrick Park Neighborhood Alliance and is a member of its steering committee. Konstancja’s role at OSA, which is funded in part by the Greenpoint Community Environmental Fund (GCEF), seeks to engage Greenpointers in McGolrick and Transmitter parks, American, Greenpoint, and Newtown Barge playgrounds. Prior to joining OSA, Konstancja worked in the legal and higher education administration sectors. She graduated with a Bachelor’s degree in English from Adam Mickiewicz University in Poznań, Poland and a Master’s degree in English from Fordham University in New York, NY. A native of Poland, Konstancja has lived in New York since 2006, and in Greenpoint since 2011. She is an avid urban and trail runner and competitor. Konstancja likes to explore lesser-known parts of New York on foot, bike, and through written histories, and is particularly interested in Greenpoint’s hyper local history. She brings with her a love for crafts, upcycling, and all things vintage.