All truncated references not fully cited in 'References' are those of Joanna Walker's original text and cited in full in the 'Bibliography' entry of the Lexicon.
African Methodist Episcopal Church: 1950. Atteridgeville, Gauteng - Architect 
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Gereformeerde Kerk: 1952. Gardens, Cape Town, Western Cape - Architect 
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Gereformeerde Kerk: 1952. Die Bult, Potchefstroom, North West - Architect
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Gereformeerde Kerk Johannesburg-Wes: 1948. Brixton, Johannesburg, Gauteng - Architect
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Nederduitse Gereformeerde Kerk: 1948. Villieria, Tshwane (Pretoria), Gauteng - Architect
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Nederduitse Gereformeerde Kerk - Hartbeesspruit: 1962. Hatfield, Tshwane (Pretoria), Gauteng - Architect
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Transvaal Provincial Administration Headquarters Building: 1962. Tshwane (Pretoria), Gauteng - Architect
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University of Pretoria, Botany Building: 1940 : 1959. Tshwane (Pretoria), Gauteng - Architect 1940
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University of Pretoria, Chemistry Block: 1943 : 1956 : 1958. Tshwane (Pretoria), Gauteng - Architect
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University of Pretoria, Zoology Building: 1924. Tshwane (Pretoria), Gauteng - Architect
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University of the Free State, H vd Merwe Scholtzsaal: n.d.. Bloemfontein, Free State - Architect
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Fisher, RC, Le Roux, SW. 1998. Architecture of the Transvaal. Pretoria: UNISA. pp 223, 224
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Greig, Doreen. 1971. A Guide to Architecture in South Africa. Cape Town: Howard Timmins. pp 45, 144, 166
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