<b>Clara Heinefetter</b> (1816–1857), German opera vocalist (soprano). <br> Lithography by Gabriel Decker (1821–1855), printed by J. Höfelich (Vienna) <br> With autograph <i>Clara Stöckl Heinefetter</i>
<bdi><a href="https://www.wikidata.org/wiki/Q4156962" class="extiw" title="d:Q4156962"><span title="Austrian portrait painter and lithographer (1821-1855)">Gabriel Decker</span></a>
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<a href="https://de.wikipedia.org/wiki/%C3%96sterreichische_Nationalbibliothek#Bildarchiv_und_Grafiksammlung" class="extiw" title="de:Österreichische Nationalbibliothek"> ÖNB, Bildarchiv Austria</a>, Inventarnummer PORT_00157405_01
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