From time to time the contract was renewed, but of course at the same rental; each time, however, the Government required Allen to include other branches of road in his engagement, so that at his death, in 1764, the cross-posts had extended to all parts of the country. Towards the last, the private project had become so gigantic as to be nearly unmanageable, and it was with something like satisfaction that the Post-Office authorities saw it lapse to the Crown. At this time it was considered one of the chief duties of the surveyors--whose business it was to visit each deputy postmaster in the course of the year--to see that the distinction between the bye-letters of the cross-posts, the postage of which belonged to Mr. Allen, and the postage of the general post letters, which belonged to the Government, was properly kept up. The deputies were known to hold the loosest notions on this subject, some of them preferring to appropriate the revenues of one or the other post rather than make mistakes in the matter. The disputes and difficulties lasted to the death of Allen.[38] Notwithstanding the losses he must have suffered through the dishonesty or carelessness of country postmasters, the farmer of the cross-posts, in an account which he left at his death, estimated the net profits of his contract at the sum of 10,000_l._ annually, a sum which, during his official life, amounted in the total to nearly half a million sterling! Whilst, in official quarters, his success was greatly envied, Mr. Allen commanded, in his private capacity, universal respect. In the only short account we have seen of this estimable man, a contemporary writer states[39] that "he was not more remarkable for the ingenuity and industry with which he made a very large fortune, than for the charity, generosity, and kindness with which he spent it." It is certain that Allen bestowed a considerable part of his income in works of charity, especially in supporting needy men of letters. He was a great friend and benefactor of Fielding; and in _Tom Jones_, the novelist has gratefully drawn Mr. Allen's character in the person of _Allworthy_. He enjoyed the friendship of Chatham and Pitt; and Pope, Warburton, and other men of literary distinction, were his familiar companions. Pope has celebrated one of his principal virtues, unassuming benevolence, in the well-known lines:-- "Let humble _Allen_, with an awkward shame, Do good by stealth, and blush to find its fame."