Leslie Charles Gibson was born in
He joined the Young Communist League (YCL) and became a well known open air speaker for the organization.
Gibson is listed as living at Aspenlea Road, Hammersmith and also at Feltham, Middlesex in this period.
He joined the British Battalion of the International Brigade, arriving in
Gibson served with No 2 Company of the British Battalion at the battle of Brunete where he was wounded.
He was also at the battle of Jarama and was wounded again in
He lived his later years in Southend.