But times were changing, and religious ceremonies changed too. Less pomp and pageantry characterise the celebrations of the clerks. There is the Evensong as usual, and a Communion on the following day, followed by a dinner and "a goodly concert of children of Westminster, with viols and regals." A little later we read that the clerks marched clad in their liveries, gowns, and hoods of white damask. Copes are no longer recognised as proper vestments. Standards, banners, and streamers remain locked up in the City's treasure-house, and Puritan simplicity is duly observed. But the clerks lacked not feasting. Besides the election dinner, there were quarterly dinners, and dinners for the wardens and assistants. Time has wrought some changes in the mode of celebrating election day and other festive occasions. Sometimes "plain living and high thinking" were the watchwords that guided the principles of the company. Processions and gown-wearing have long been discontinued, but in its essential character the election day is still observed, though pomp and pageantry no longer form important features of its ceremonial.

We have seen that the parish clerks of London were in great request on account of their musical abilities. In 1610 the masters and wardens were called upon to examine all those who wished to be admitted into the honourable company, as to whether they could read the Psalms of David according to the usual tunes used in the parish churches. The finest singers chanted Mass in pre-Reformation times in the Guildhall at the election of the Lord Mayor. In order to improve themselves in this part of their duties, the parish clerks soon after the Restoration of the monarchy, in 1660, provided themselves with an organ in order to perfect themselves in the art of chanting. The minute book of the company tells that it was acquired "the better to enable them to perform a service incumbent upon them before the Lord Mayor and Aldermen of the City on Michaelmas Day, and also the better to enable them who already are, or hereafter shall be, parish clerks of the City in performing their duties in the several parishes to which they stand related." Here the clerks used to meet on Tuesday afternoons for a regular weekly practice in music, and for many years an organist was appointed by the company to assist the brethren in their cultivation of psalmody. The selection of psalms specially suited for each Sunday in the year was made by the company and set forth in The Parish Clerks' Guide, in order that the special teaching of the Sunday, as set forth in the Collect, Epistle, and Gospel, might be duly followed in the Psalms.

Another important duty which the parish clerks of London, and also in some provincial towns, discharged was the publishing of the bills of mortality for the City. This duty is enjoined in their charter of 1610. The corporation required from them returns of the deaths of freemen in their respective parishes, and also returns of the number of deaths and christenings. The records of the City of London contain a copy of the agreement, made in 1545-6 between the Lord Mayor and the Parish Clerks' Company, which provides that "They shall cause all clerks of the City to present to the common crier the name and surname of any freeman that shall die having any children under the age of 21 years." The Chamberlain was instructed to pay to the company 13 s. 4 d. yearly for their services. The custody of all orphans, with that of their lands and goods, had been entrusted to the City by the charter of Richard III, and this agreement was made in order to enable the "City Fathers" to faithfully discharge their duties in looking after children of deceased freemen. In spite of many difficulties, especially after the Great Fire which rendered thousands homeless and scattered the population, the clerks continued to perform this duty, though not always to the satisfaction of their employers, until the beginning of the eighteenth century, when the custom seems to have lapsed.

The earliest bills of mortality now in existence date back to the time of Henry VIII, when the clerks were required to furnish information with regard to the deaths caused by plague, as well as those resulting from other causes. The returns of the victims of plague are occasionally very large. In 1562, 20,372 persons died, of which number 17,404 died from the plague. The burial grounds of the City became terribly overcrowded, and the parish clerks were ordered to report upon the space available in the City churchyards. They also were appointed to see to "the shutting up of infected houses and putting papers on the doors."

An early "Bill of Mortality" is preserved at the Hall. It tells of "the Number of those who dyed in the Citie of London and Liberties of the same from the 28th of December 1581 to the 17th of December 1582, with the Christenings. And also the number of all those who have died of the plague in every parish particularly. Blessed are the Dead." There is also preserved a number of the weekly bills of mortality. Referring to the year of the Great Plague, 1665, these documents show that at the beginning of the pestilence in April, during one week only fifty-seven persons died; whereas in September the death-roll had reached the enormous number of 6544.

The company seems to have been a useful agency for carrying out all kinds of duties connected with gathering the statistics of mortality, nor do they seem to have been overpaid for their trouble. In the early years of the seventeenth century £ 3. 6 s. 8 d. was all that they received. In 1607 the sum was increased to £8, inasmuch as they were ordered to furnish a bill to the Queen and the Lord Chancellor as well as to the King. Some clerks endeavoured to make illicit gains by supplying the public with "false and untrue bills," or distributing some bills for each week before they had been sent to the Lord Mayor; and any brother who "by any cunning device gave away, dispersed, uttered, or declared, or by sinister device cast forth at any window, hole, or crevice of a wall any bills or notes" before the due returns had been sent to the Lord Mayor, was ordered to pay a fine of 10 s. and other divers penalties.

The methods of making out these returns are very curious, and did not conduce to infallible accuracy. In each parish there were persons called searchers, ancient women who were informed by the sexton of a death, and whose duty it was to visit the deceased and state the cause of death. They had no medical knowledge, and therefore their diagnosis could only have been very conjectural. This they reported to the parish clerk. The clerk made out his bill for the week, took it to the Hall of the company, and deposited it in a box on the staircase. All the returns were then tabulated, arranged, and printed, and when copies had been sent to the authorities, others were placed in the hands of the clerks for sale.