Pollitt joined the MSL&R in 1857 and had been appointed Accountant for the company in 1869 having previously served as chief clerk to that post. As Accountant he was responsible for an initiative in 1878 to reduce third-class fares to a penny a mile, which increased the net contribution from that class of passengers. He was appointed to the newly created post of Assistant General Manager in 1885. This post appears to have been created to bolster Underwood, the General Manager, whose health was failing. In turn Pollitt acceded to the General Managership in 1886 when Underwood was elected to the Board. Among other achievements he piloted the MSL&R's strategic line from Beighton to Annesley via Chesterfield, which came into law in 1889. He was chairman or director of several other railways, and a conservancy Commissioner for rivers
Humber and
Dee. Pollitt's disputes with John Bell of the
Metropolitan Railway were notorious. ==Knighthood and civic offices==