Rubuta ci gaba ga wannan sakin layi - Daga cikin waɗanda suka zauna don hotunan su ne Martin A. Ryerson, J. Ogden Armour, N. W. Harris, Harry P. Judson, da Peter S. Grosscup. Ya karbi lambar azurfa a Saint Louis Exposition
a 1904; lambar zinare a baje kolin kasa da kasa, Munich, a 1905, da kuma a Paris Salon a 1913 (na farko American haka girmama); kuma aka bayar da lambar girmamawa a Panama <unk> Pacific International nuni a 1915. Parker kuma shine shugaban kamfanin Rodin Studios, wanda ya haɓaka gidajen haɗin gwiwar masu fasaha iri ɗaya a cikin Birnin New York.