I couldn't find any relevant information about a US nonprofit organization named "Harp Center" with the specified EIN 264344067. There is a notable establishment called the Sylvia Woods Harp Center, but it primarily focuses on harps for musical purposes rather than being a nonprofit organization. Therefore, it is not possible to write a Wikipedia-style article based on the provided details.

[1] https://www.harpsfoundation.org [2] https://www.harpsociety.org [3] https://www.harpcenter.com [4] https://healthandreentryproject.org/the-harp-team/ [5] https://www.harprescue.org