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Brockhaus-1837: Spencer
Brockhaus-1911: Spencer [2] · Spencer
Eisler-1912: Spencer, Herbert
Herder-1854: Spencer [3] · Spencer [4] · Spencer [1] · Spencer [2]
Meyers-1905: Spencer-Gewehr · Spencer-Churchill · Spencer [1]
Pagel-1901: Wells, Sir Thomas Spencer · Cobbold, Thomas Spencer
Pierer-1857: Spencer [3] · Spencer [2] · Spencer [1]