I gave a shot at the Belgian yeasts, but it is hard. Some notes regarding the assignments in your sheet @dmtaylor. Given that I have zero experience with these yeasts it should be taken with a grain of salt.
- M21 could also be T-58 instead of Lallemand Wit
- M31 cannot be BE-256 because the former is diastatic while the latter is not. My guess is that M31 is Lallemand Belle Saison + Abbaye. It is reported to have two grains of different color, indicating a mix. Belle Saison + Abbaye is one of the recommended mixes from Lallemand for fruit + spice.
- M41 cannot be BE-134, as M41 was released in 2015, while BE-134 didn’t appear until 2017 or so. My guess based on the stats is that M41 could be WB-06.
- M47 could be either T-58 or Lallemand Abbaye