Later , only after much urging from his wife , Ileana Sonnabend , did Leo Castelli finally organize a solo show for Rauschenberg in the late 1950s .
Robert Rauschenberg had his first solo show in 1951 , at the Betty Parsons Gallery in New York .
Later , only after much urging from Robert Rauschenberg 's wife , Ileana Sonnabend , did Leo Castelli finally organize a solo show Robert Rauschenberg Rauschenberg in the late 1950s .
Robert Rauschenberg had his first solo show in 1951 , at the Betty Parsons Gallery in New York .