Rubuta ci gaba don wannan sakin layi - A ƙarshen 1920s da farkon 1930s sun kasance mawuyacin lokaci ga masu mallakar ma'adinai da masu hakar ma'adinai. A lokacin yajin aiki na 1926
, jerin motocin manyan motoci sun yi tafiya zuwa Whitfield daga ko'ina cikin ƙasar don siyan ƙaramin kwal da aka adana a ma'adinan kwal. A cikin 1929 kwanaki 193 ne kawai aka yi aiki kuma a lokacin 1930s Depression 300 Whitfield masu hakar gwal sun zama marasa amfani. Gidajen kwal na Arewacin Staffordshire sun yi aiki a kan tsarin tanadi na tanadi a wannan lokacin kuma lokacin da aka samar da adadin kowane wata dole ne su dakatar da aiki.