Many thanks for your query to Ireland Reaching Out.
The townland name of Runnaboll is listed in the Placenames Database of Ireland. You can refer to it here:
You will note under the scanned documents that it has a number of variant names to it.
In addition, there is a published article on the internet that discusses the name of Runnaboll and it's origins. That link is below:
I am unaware of any Census between 1749 and the Tithe Applotment Books. There are 1851 Census Extracts for County Roscommon but not for Kilcolagh parish.
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