[2] From 1949 to 1952 he attended Royal College of Art, where his teachers were Ruskin Spear, Carel Weight and John Minton.
Middleditch exhibited widely and is represented in major and regional collections in UK, US, Canada, and Australia.
He drew his motifs from the natural world: grasses, water, feathers, opening petals, reflections etc.
Gradually shifting observed patterns became fleeting abstracted movements often caught from water currents and light effects.
His later work became much more abstracted, concerned with repeating patterns as if seen from above and filling the picture-frame; drawing influence from kilims and Persian carpets.