Oldweather - interesting external collaborative project

https://www.oldweather.org/ - “Help scientists transcribe Arctic and worldwide weather observations recorded in ship’s logs since the mid-19th century.”
They use custom LibreOffice (Arctic) or Word (Whaling) spreadsheets to receive the transcriptions.
I wonder if people from Wikidata and/or Wikisource would be interested in helping them, and/or getting their content into our sites? :) (via)