. "1983"^^ . . "1889"^^ . . "Mackay, John A. (1889-1983)" . _:Bbf41b810513ebf5b52ba01569906554a . "John A." . "John A. Mackay" . . "Mackay, John Alexander" . "Mackay" . _:Bbf41b810513ebf5b52ba01569906554a . _:Bbf41b810513ebf5b52ba01569906554a . _:Bbf41b810513ebf5b52ba01569906554a "2023-05-20"^^ . _:Bbf41b810513ebf5b52ba01569906554a . _:Bbf41b810513ebf5b52ba01569906554a . _:Bbf41b810513ebf5b52ba01569906554a "113263759" . _:Bbf41b810513ebf5b52ba01569906554a . _:Bbf41b810513ebf5b52ba01569906554a . _:Bbf41b810513ebf5b52ba01569906554a .