Section, acts June 17, 1910, ch. 301, § 4, 36 Stat. 537; Mar. 4, 1913, ch. 141, § 1, 37 Stat. 736; Aug. 16, 1937, ch. 665, § 4, 50 Stat. 667, gave Commissioner of Lighthouses the power to settle damage claims up to $500.