Rose, Hugh James[in 英語] (1857). "Bakker, James". A New General Biographical Dictionary. Vol. 3 BAH–BEE. London: B. Fellowes et al. p. 45.
dbnl.org
He completely finished, in one day, the half length portrait of a lady in full dress, even so early, that she was able to return the same day back to Haarlem with the painting; cited 50 years later in Jakob Bakker biography in De groote schouburgh der Nederlantsche konstschilders en schilderessen (1718) by Arnold Houbraken, courtesy of the Digital library for Dutch literature
