Accounts for law changes submitted by Thompson and Marshall, to 1847; Thompson and Cook, to 1872; Thompson, Cook & Son to 1878 and Thompson Cook and Barbing to from then onwards. These detailed bills contain a chronological record of the negotiations reflected in the sales, purchases and leases in C WT/1 and C WT/2 and the general law business in the correspondence C WT/5. The dates given are those covered by the account itself.