Bloomberg Philanthropies @ Bloomberg Philanthropies

Note: While the source confirms that Bloomberg Philanthropies exists and provides extensive information about the organization, it does not contain the specific personnel data needed to verify the record. The source has a 'Board of directors' section in its table of contents, but the actual board member names and roles are not included in the provided excerpt. Therefore, the claim about John J. Mack being a Board Member cannot be confirmed or contradicted based on this source text.