Robert David Roberts of Edge House rose from being the shop boy in his uncle Edward Jones' grocery in Llanrwst to a full partner in the firm. In 1878 Edward Jones joined his brother in law, Evan Morris to form Morris and Jones in Liverpool - a Wholesale Grocery & Provision Warehouse. Here's a price list from April 1889.
Over the next few days I aim to scan in for your delectation some examples of pages from the price list. The original is part of the Edge House archive and you can see it if you visit. What is particularly interesting is that the commercial traveller whose book it was has annotated it.
For many years their HQ was in Keenora House in Wood Street, Liverpool. By the 1950's it was the largest in the North of England, with businesses in Liverpool, Manchester, Leeds, Newcastle and Caernarfon. In the 1960s the firm started a cash & carry business named MoJo, which was later sold to Booker.