United National Association of Post Office Craftsmen

The National Association of Post Office Clerks was organized in 1890. After a series of mergers with other postal unions, it became the United National Association of Post Office Craftsmen in 1956.

The United National Association of Post Office Clerks was organized in 1890 as the National Association of Post Office Clerks. In 1897, a seceding faction organized the United Association of Post Office Clerks. The National Association of Post Office Clerks and the United Association of Post Office Clerks merged in 1899 under the name of the United National Association of Post Office Clerks. In 1906, a seceding faction organized the National Federation of Post Office Clerks. In 1917, the Brotherhood of Railway Postal Clerks merged with the National Federation; the National Association of Letter Carriers and the Railway Mail Association affiliated with the A.F. of L. In 1956, the name of the United National Association of Post Office Clerks was changed to the United National Association of Post Office Craftsmen, and in 1961, this union merged with the National Federation of Post Office Clerks, United Postal Workers, and National Postal Transportation Association to form the United Federation of Post Office Clerks.

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