Landon was born in 1887 in West Middlesex, Pennsylvania, the son of Anne (Mossman) and John Manuel Landon [REF].
By 1929, the oil industry had made Alf a millionaire, and he was instrumental in the establishment of the Kansas-Oklahoma division of the United States Oil and Gas Association, then known as the Mid-Continent Oil and Gas Association, a petroleum lobbying organization [REF].