Footnotes in a table (LaTeX2e unofficial reference manual (November 2018))

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### 11.5 Footnotes in a table

Inside a `tabular` or `array` environment the `\footnote` command does not work; there is a footnote mark in the table cell but the footnote text does not appear. The solution is to use a `minipage` environment as here (see minipage).

    \begin{center}
      \begin{minipage}{\textwidth} \centering
         \begin{tabular}{l|l}
           \textsc{Ship}           &\textsc{Book} \\ \hline
           \textit{HMS Sophie}     &Master and Commander  \\
           \textit{HMS Polychrest} &Post Captain  \\
           \textit{HMS Lively}     &Post Captain \\
           \textit{HMS Surprise}   &A number of books\footnote{%
                                      Starting with HMS Surprise.}
         \end{tabular}
      \end{minipage}
    \end{center}

Inside a `minipage`, footnote marks are lowercase letters. Change that with something like `\renewcommand{\thempfootnote}{\arabic{mpfootnote}}` (see \alph \Alph \arabic \roman \Roman \fnsymbol).

The footnotes in the prior example appear at the bottom of the `minipage`. To have them appear at the bottom of the main page, as part of the regular footnote sequence, use the `\footnotemark` and `\footnotetext` pair and make a new counter.

    \newcounter{mpFootnoteValueSaver}
    \begin{center}
      \begin{minipage}{\textwidth}
        \setcounter{mpFootnoteValueSaver}{\value{footnote}} \centering
         \begin{tabular}{l|l}
           \textsc{Woman}             &\textsc{Relationship} \\ \hline
           Mona                       &Attached\footnotemark  \\
           Diana Villiers             &Eventual wife  \\
           Christine Hatherleigh Wood &Fiance\footnotemark
         \end{tabular}
      \end{minipage}%  percent sign keeps footnote text close to minipage
      \stepcounter{mpFootnoteValueSaver}%
        \footnotetext[\value{mpFootnoteValueSaver}]{%
          Little is known other than her death.}%
      \stepcounter{mpFootnoteValueSaver}%
        \footnotetext[\value{mpFootnoteValueSaver}]{%
          Relationship is unresolved in XXI.}
    \end{center}

For a floating `table` environment (see table), use the `tablefootnote` package.

    \usepackage{tablefootnote}  % in preamble
       ...
    \begin{table}
      \centering
         \begin{tabular}{l|l}
         \textsc{Date}  &\textsc{Campaign} \\ \hline
         1862           &Fort Donelson \\
         1863           &Vicksburg     \\
         1865           &Army of Northern Virginia\tablefootnote{%
                          Ending the war.}
         \end{tabular}
        \caption{Forces captured by US Grant}
    \end{table}

The footnote appears at the page bottom and is numbered in sequence with other footnotes.

Unofficial LaTeX2e reference manual