. "5" . . "April, 1930" . . . "Blackstone Apartments" . . "Blackstone Apartment building" . . . "1831 SW Park Avenue" . . "August, 1930" . "Blackstone Apartments" . . "Blackstone Residence Hall" . . . . . "Blackstone Hall (Portland State University)" . . "300000.0" . "Blackstone Hall (Portland State University)" . . . . . . "Blackstone" .