 Julia assisted Osborn in writing a biography of her father , titled Cope : Master Naturalist . She would not comment on the name of the woman with whom her father had had an affair prior to his first European travel . Julia is believed to have burned any of the scandalous letters and journals Cope had kept , but many of his friends were able to give their recollections of the scandalous nature of some of Cope 's unpublished routines . Charles R. Knight , a former friend called , " Cope 's mouth the filthiest , from hearsay that in [ Cope 's ] heyday no woman was safe within five miles of him . " As Julia was the major financier behind The Master Naturalist , she wanted to keep her father 's name in good standing and refused to comment on any misdeeds her father may have committed . 
