The Victoria County History for Hertfordshire records that in 1813 the straw plait market was held in Collett's Yard, and later in the King's Head Yard. The book Times' Highway records that Collett's Yard was on the East side of the High Street, and was later known as Orchard's Yard, and later still as Austin's Yard. In 1823 Orchard & Son was listed under "Grocers, Tea Dealers and Cheesmongers" and also as "Tallow Chandler" (Pigot's Directory).  In 1851 Joseph Orchard was a "grocer, etc" in the High Street (Post Office Directory) and the 1851 census shows many people living in Orchard's Yard to the north of the Bell Inn, while the King's Arms Yard is to the south of the Bell Inn. In the 1861 census Thomas Austin's grocer's shop is immediately adjacent to the Plait Market Yard (again north of the Bell Inn). In 1871 the same area off the High Street,north of the Bell, is called Austin's Yard.

1891 Austin's Shop clearly No 57 - and "Austin's Place" clearly nearer the Quaker Neetuing House and Chapel Street than it is to the King's Head Yard.

1901 Census - Austin's Place is clearly off the way between the High Street and Chapel Street, and not the one between the Kings Arms and St Mary's Road

1841 Orchard's Yard clearly the between the High Street and Chapel Street

1843 Tithe

In 1914 Charles John Austin & Co were "wholesale grocers" at 57 High Street (Kelly's Directory)..

If you can add to the information given above tell me.