There are some similarly named pairs of directories which each have identically named font files.
These files are redundant, and exist following the renaming of a family.
The initial directories are kept so that people already using that initial name can continue to do so.
They are no longer listed in the main www.google.com/fonts directory, but the files exist in this repo since they are still served via the Google Fonts API.
-`ofl/mrbedford` and `ofl/mrbedfort` contain `MrBedfort-Regular.ttf`
-`ofl/mrssaintdelafield` and `ofl/misssaintdelafield` contain `MrsSaintDelafield-Regular.ttf`
-`ofl/siamreap` and `ofl/siemreap` contain `Siemreap.ttf`
-`ofl/terminaldosis` and `ofl/dosis` contain the same files (renamed) and `ofl/terminaldosislight` contain `TerminalDosis-Light.ttf`
The www.google.com/fonts directory is accompanied by a [Google Fonts Developer API](https://developers.google.com/fonts/docs/developer_api) which provides raw data for constructing such a directory in JSON format.