Henry Ottley, Michael Bryan: Vickers, Alfred Gomersal. In: A biographical and critical dictionary of recent and living painters and engravers. Chatto and Windus, London 1875, S.169 (Textarchiv – Internet Archive).
Leitch Ritchie: A Journey to St. Petersburg and Moscow through Courland and Livonia. Hrsg.: Charles Heath (= Heath’s Picturesque Annual for …). Longman, London 1836 (archive.org).
Richard Redgrave: Vickers – Alfred Gomersal Vickers. In: A Catalogue of the National Gallery of British Art at South Kensington … Printed by Eyre and Spottiswoode, for H. M . Stationery off., 1893, S.193 (Textarchiv – Internet Archive).