The gun room at Marshall Fields was held in very high regard as far as quality of merchandise and workmanship. The only gunsmith I know of by name is Jerry Matthews who worked there. After leaving Marshall Fields, Jerry worked out of Shot and Shutter/McHenry Gun Center in northern Illinois and became a part owner of the shop when he won it in a poker game. I think Jerry got out gunsmithing when the store was sold in the mid-70s and it became Schrank’s Smoke ‘n Gun West.