O'Neill honored 21 to join Ruth's 3, Gehrig's 4, Yogi's 8 – Oneida Dispatch
Yankees honor Paul O'Neill with Monument Park plaque
O'Neill honored 21 to join Ruth's 3, Gehrig's 4, Yogi's 8 - The San Diego Union-Tribune
O'Neill honored 21 to join Ruth's 3, Gehrig's 4, Yogi's 8