We present new estimates of the British industrial unemployment rate for 1870–1913, which improve on the Board of Trade's prior estimates. We use similar sources, but our series includes additional industrial sectors, allows for short-time working, and aggregates the various sectors using appropriate labor-force weights from the census. The resulting index suggests a rate of industrial unemployment that was generally higher, but less volatile, than the board's index. We then adjust our series to an economywide basis, and construct a consistent time series of overall unemployment for 1870–1999.