Who were Herbert Hoover 's grandchildren?

• Margaret Ann Hoover (born 1926).
• Herbert "Pete" Hoover III (born 1927).
• Joan Ledlie Hoover (born 1930).

From his second son, Allan Henry Hoover (1907-1993) who was married to Margaret Coberly,he had 3 grand-children:

• Allan Hoover (born 1938).
• Andrew Hoover (born 1940).
• Lou Henry Hoover (born 1943).