Right now there are very few ingenios in Cuba and those ones till operating have different names. It is hard to know which one you are refering to. But maybe this list will help you to refresh your memory.

Pilon was in the Oriente province, around Manzanillo/Media Luna.

http://www.cubagenweb.org/e-mills.htm#granma

The Cuban Genealogical Society also has a list, but I know there is a lot of mistakes on it, specially on the names of the towns.

Good luck. I hope this list will help you .
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