Prior to founding his crisp company in 1948, Henry Walker had what occupation?

Walkers is a British snack food manufacturer mainly operating in the UK and Ireland. The company is best known for manufacturing crisps (potato chips) and other non-potato-based snack foods. As of 2013 it holds 56% of the British crisp market. Walkers was founded in 1948 in Leicester, England by Henry Walker, and in 1989 was acquired by Lay's owner, Frito-Lay, a division of PepsiCo.

In the 1880s, Walker moved from Mansfield to Leicester to take over an established butcher's shop in the high street. Meat rationing in the UK after World War II saw the factory output drop dramatically, and so in 1948 the company starting looking at alternative products. Potato crisps were becoming increasingly popular with the public, leading managing director R.E. Gerrard to shift the company focus and begin hand-slicing and frying potatoes.

The Walkers site in Leicester is the largest crisp production plant in the world, producing over 11 million bags of crisps per day and using about 800 tons of potatoes. The company produces a wide variety of flavours for its potato crisps. The three main varieties are cheese and onion (introduced in 1954), salt and vinegar (introduced in 1967) and ready salted. Other examples include Worcester sauce, roast chicken, prawn cocktail, smoky bacon, tomato ketchup, and pickled onion.