| Robert H. Vance Advert for "Colored Miniatures by Daguerreotype. R. H. Vance" 1846, 30 May Advert Private collection of Graham Pilecki LL/61570 Peter E. Palmquist, Thomas R. Kailbourn, 2000, Pioneer Photographers of the Far West: A Biographical Dictionary, 1840-1865, (Stanford University Press), p. 559
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