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https://www.familysearch.org/ark:/61903/3:1:3QSQ-G9FH-Z686?i=491&cat=444385
image 492 has the image of the register with John Charles Lee.
I would say section J.
Compare T & J for entries 79638 & 79639.
I think Roby is also in section J. Compare 81188 & 81189 (T).