"Perkins, Donald H." . . . _:Baae2bdf8dcf6da646b1e96502757fc6a . . . "Donald H." . "Donald H. Perkins" . "Perkins" . "Perkins, D.H." . "Perkins, Donald Hill" . _:Baae2bdf8dcf6da646b1e96502757fc6a . _:Baae2bdf8dcf6da646b1e96502757fc6a . _:Baae2bdf8dcf6da646b1e96502757fc6a "2023-05-20"^^ . _:Baae2bdf8dcf6da646b1e96502757fc6a . _:Baae2bdf8dcf6da646b1e96502757fc6a . _:Baae2bdf8dcf6da646b1e96502757fc6a "070759162" . _:Baae2bdf8dcf6da646b1e96502757fc6a . _:Baae2bdf8dcf6da646b1e96502757fc6a . _:Baae2bdf8dcf6da646b1e96502757fc6a .