MB ChB Manch 1924, DPH 1926.
McLean, of Horwich, near Bolton, was clinical assistant to the Royal Manchester Children's Hospital and medical officer to the out-patient department of St Mary's Hospital Manchester. She was resident house officer to Chorley Hospital before entering the public health service. McLean was assistant medical officer of health to Swinton and Pendlebury and Bridgend and Penybont. She was later assistant medical officer of health to Preston borough and clinical assistant to Preston Paediatric Clinic. McLean was a member of the Society of Medical Officers of Health.