Sir Samuel Instone (1878 – 1937) was a shipping and aviation entrepreneur and the founder of the Instone Air Line. Born in Gravesend, Kent, he came to Cardiff in Wales in 1908 to work for a shipping company as a manager. With his brother, Theodore Instone, he went into business as a coal factor in 1908, and in 1914 bought the ship, Collivaud from Morels. After World War I, the brothers owned ten vessels shipping coal from the South Wales valleys. It was during this period that Samuel diversified into coal mining with the acquisition of the Bedwas colliery.
In 1919 Instone Air Line was set up by Samuel along with another brother Alfred, and started an air route from Cardiff to Paris. Due to the depression of the 1920's Samuel saw his shipping interests wane, and by 1925 the last of his ships were sold.
In 1922 Frank Barnard, chief pilot of Instone Air Line won the first King's Cup Race. Sir Instone on a visit to Bedwas Colliery brought with him the trophey and it was allowed to be displayed in one of the local shop's window.