Alexander Fleming was born at Lochfield near Darvel in Ayrshire, Scotland on August 6th, 1881. He attended Louden Moor School, Darvel School, and Kilmarnock Academy. The seventh of eight children. His family worked an 800-acre farm a mile from the nearest house. The Fleming children spent much of their free time ranging through the streams, valleys, and moors of the countryside.
When their father died, Fleming's eldest brother inherited the running of the farm. Another brother Tom had studied medicine and was opening a practice in London. Soon, four Fleming brothers and a sister were living together in London. Alec, as he was called, had moved to London when he was about 14, and went to the Polytechnic School in Regent Street. Tom encouraged him to enter business. After completing school he was employed by a shipping firm, though he didn't much like it. In 1900, when the Boer War broke out between the United Kingdom and its colonies in southern Africa, Alec and two brothers joined a Scottish regiment. This turned out to be as much a sporting club as anything; they honed their shooting, swimming, and even water polo skills, but never went to the Transvaal. Soon after this, the Flemings' uncle died and left them each 250 pounds. Tom's medical practice was now thriving and he encouraged Alec to put his legacy toward the study of medicine.