Previous SC 237's:
1946 ROUTE LOG
SC 404: 0 - 0
SC 19: 4.8 - 4.8
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SC 237: Appeared in 1942 as new primary routing from SC 404 (now S-19-75) near SC 191 in a north loop to end at SC 19 (now SC 121) Johnston.
In 1947, SC 237 was downgraded to S-19-41. The north-south portion of this is now S-19-57.
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SC 237 out of Johnston
1942 Official
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