In 1609 the Gloucestershire Commissioners of Sewers consolidated its records, developing its archival practice over the course of the seventeenth century.
The Webbs provide the fullest explanation of Metropolitan Commissions of Sewers, operating in the Greater London area, as their records were more fully available to them after the Metropolitan Commissioners of Sewers were replaced by the Metropolitan Board of Works in 1855.
Other early records of the Surrey and Kent Commissioners of Sewers can be found at the London Metropolitan Archive, which holds a series of twenty-four volumes covering (with some areas missing) the period between January 1569 and 1847.
That she was known to have inherited numerous properties from her husband is verified by Philip Henslowe's will, by the fact that Agnes drew up her own will barely a month after her husband died, and by the report of the Commissioners of Sewers. However, some earlier biographers, such as William Rendle and W.
(6.) Ida Darlington, "The London Commissioners of Sewers and their Records" in Prisca Munimenta: Studies in Archival & Administrative History, edited by Felicity Ranger (London: University of London Press, 1973), 282-98.