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Bolckow: Illustration of the remains of the Middlesbrough Priory taken from William Hylton Longstaffes "History of Darlington"
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Bolckow: George Allan Esq M.A., F.S.A., M.P. from Longstaffes "History of Darlington"
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Bolckow: Blackwell Grange, near Darlington, County Durham, from Longstaffes "History of Darlington" it was home of the Allans and it is now a hotel.
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Bolckow: Middlesbrough Grant of Arms, 1911
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Bolckow: Middlesbrough Grant of Arms, 1911
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Bolckow: Middlesbrough Council original Grant of Arms - 1911.