http://pec.lib.wvu.edu/record/P36761955-1957Quarterly report for the period ended ...Serial. Printed Ephemera Collection has: 1955:Mar.31, 1956:Mar.31-1956:June 30; 1957:Mar.31.Island Creek Coal Company.Coal mines and mining--Periodicals.Island Creek Coal Company (Bradshaw, W. Va.)--Periodicals.14256