<Tr> <Td> Railway Clerks, Brotherhood of </Td> <Td> 1899 </Td> <Td> 1908 </Td> <Td> 91,200 </Td> <Td> Journal: The Railway Clerk . </Td> </Tr> <Tr> <Td> Railway Mail Association </Td> <Td> 1898 </Td> <Td> 1917 </Td> <Td> 19,100 </Td> <Td> Journal: The Railway Post Office . </Td> </Tr> <Tr> <Td> Retail Clerks' International Protective Association </Td> <Td> 1890 </Td> <Td> 1891 </Td> <Td> 10,000 </Td> <Td> Journal: Retail Clerks' International Advocate . </Td> </Tr> <Tr> <Td> Roofers, United Slate, Tile and Composition + Damp and Waterproof Workers' Association </Td> <Td> 1902 </Td> <Td> 1903 </Td> <Td> 3,000 </Td> <Td> Amalgamated with Slate and Tile Roofers in 1919 . Now United Union of Roofers, Waterproofers and Allied Workers . </Td> </Tr>

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