 Creutz served as an assistant director of the National Science Foundation from 1970 to 1977 , and then as Director of the Bernice Pauahi Bishop Museum in Honolulu , where he took particular interest in the museum 's preparation of a Manual of the Flowering Plants of Hawaii ' . 
 Creutz served as an assistant director of the National Science Foundation from 1970 to 1977 , and then as Director of the Bernice Pauahi Bishop Museum in Honolulu , where he took particular interest in the museum <a href='null_genetive' title='1'><mark>'s</mark></a>preparation of a Manual of the Flowering Plants of Hawaii ' . 
Creutz served as an assistant director of the National Science Foundation from 1970 to 1977 , and then as Director of the Bernice Pauahi Bishop Museum in Honolulu , where he took particular interest in da museum  preparation of a Manual of tdaFlowering Plants of Hawaii ' .