But not all these entries were made by the incumbents. There is good evidence that the parish clerks not infrequently kept the registers, especially in later times, and from the beginning they were responsible for the facts recorded. The entries do not seem to have been made when the baptism, marriage, or burial took place. Cromwell's edict required that the records of each week should be entered in the register on the following Sunday, in the presence of the churchwardens. It seems to have been the custom for the clerk or vicar to write down particulars of the baptism, marriage, or burial in a private memorandum book or on loose sheets of paper at the time of the ceremony. Afterwards these rough notes were copied into the register book. Sometimes this was done each week; but human nature is fallible; the clerk or his master forgot sometimes to make the required entries in the book. Days and weeks slipped by; note-books and scraps of paper were mislaid and lost; the spelling of the clerk was not always his strongest point; hence mistakes, omissions, inaccuracies were not infrequent. Sometimes the vicar did not make up his books until a whole year had elapsed. This was the case with the poor parson of Carshalton, who was terribly distressed because his clerk would not furnish him with the necessary notes, and mightily afraid lest he should incur the censure of his parishioners. Hence we find the following note in his register, dated 10 March, 1651: "Good reader, tread gently: "For though these vacant years may seem to make me guilty of thy censure, neither will I excuse myself from all blemishe; yet if thou doe but cast thine eye upon the former pages and see with what care I have kept the Annalls of mine owne time, and rectifyed sundry errors of former times, thou wilt begin to think ther is some reason why he that began to build so well should not be able to make an ende.