While doing my Masters Thesis, I took a look at the contributor roles declared for various works. One thing I noticed is that even though Stuart McGill contributed two corpora to ELAR when these corpora get translated to OALC the translation mucks the metadata so that only one resource shows up with his name.

http://dla.library.upenn.edu/dla/olac/search.html?fq=archive_facet%3A%22Endangered%20Languages%20Archive%22%20AND%20contributor_facet%3A%22Stuart%20McGill%22

I asked the archive director about this and my understanding/recollection from that conversation is that metadata was piped through the TLA. https://lat1.lis.soas.ac.uk/ds/asv/?0&openpath=538104 I think the above record was also at the preveious link... but it doesn't resolve currently and there have been technology stack changes at ELAR since my Thesis was released. Here is the interface in the Internet Archive for a different record.
http://web.archive.org/web/20200616011131/https://lat1.lis.soas.ac.uk/ds/asv/;jsessionid=00127741134CA14440824DA736655134?0&openhandle=2196/00-0000-0000-0012-D580-4