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- A Collection of Photographs, The Family of Thomas & Mary Orr
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- Edward Orr, of Belfast, Ireland, 1860-1906, barman & publican
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- The Family of Thomas Orr & Mary Dunlop, of Belfast, Ireland
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- The Will of Thomas Orr, Grocer, Belfast, Ireland, Proven 1901
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- Thomas Orr, Grocer of Belfast, 1817-1901, His Photograph
