U-94,
...that a German-American was aboard the German submarine, U-94, when she was sunk by United States Navy and Canadian Navy forces?
...that a German-American was aboard the German submarine, <b id="mwBEg"><a class="mw-redirect" href="./Unterseeboot_94_(1940)" id="mwBEk" rel="mw:WikiLink" title="Unterseeboot 94 (1940)">U-94</a>,</b> when she was sunk by  <a href="./United_States_Navy" id="mwBEo" rel="mw:WikiLink" title="United States Navy">United States Navy</a> and <a class="mw-redirect" href="./Maritime_Command_(Canada)" id="mwBEs" rel="mw:WikiLink" title="Maritime Command (Canada)">Canadian Navy</a> forces?