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Media Types: Images- Item types: Tintypes
- Item types: Photographs
- Groups: Milton - P. L. Robertson Collection
- Year: 1870
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- John Robertson and Annie Brown Robertson.
John and Annie Robertson were the parents of the inventor P. L. Robertson. John died in 1886 and Annie in 1909. John was an immigrant from Scotland and Annie was born in Canada, the daughter of Scottish immigrants. For further information see "P.L. Inventor of the Robertson Screw" by Ken … John and Annie Robertson were the parents of the inventor P. L. Robertson. John died in 1886 and Annie in 1909. John was an immigrant from Scotland and Annie was …Milton Historical Society
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