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"White Cross on Okinawa" is 1945 song by Bob Wills and His Texas Playboys. The song was Bob Wills' fourth number one on the Juke Box Folk chart where it spent a single week at the top and a total of five weeks on the chart.
References
Whitburn, Joel (2004). The Billboard Book of Top 40 Country Hits: 1944-2006, Second edition. Record Research. p. 392.