_:B9f87aae91048794bb412a45efc52ad64 . "Alf" . "Robertson" . "Alf Robertson" . . . "Robertson, Alf" . . _:B9f87aae91048794bb412a45efc52ad64 . _:B9f87aae91048794bb412a45efc52ad64 . _:B9f87aae91048794bb412a45efc52ad64 "2023-05-19"^^ . _:B9f87aae91048794bb412a45efc52ad64 . _:B9f87aae91048794bb412a45efc52ad64 . _:B9f87aae91048794bb412a45efc52ad64 "292584237" . _:B9f87aae91048794bb412a45efc52ad64 . _:B9f87aae91048794bb412a45efc52ad64 . _:B9f87aae91048794bb412a45efc52ad64 .