Carol K. Mack and Dinah Mack are authors whose works are not detailed in the provided text.
The provided text lists notable deaths in April 2026, including individuals from various fields such as politics, arts, sports, and academia. The entries are organized alphabetically by surname for each day. Information typically includes name, age, country of citizenship, reason for notability, cause of death if known, and a reference.
Within this list, Carol K. Mack and Dinah Mack are mentioned as authors. However, the extract does not provide specific details about their notable works, their fields of expertise beyond authorship, or any particular esoteric or philosophical contributions. The focus of the text is on reporting the deaths of public figures and providing brief biographical identifiers.