@uliwitness @hannah I didn't find any information to indicate that but if you can that'd be cool!
@Siph @hannah Wikipedia (en) mentions it and has a link to an archived article at Heise making the claim: https://web.archive.org/web/20121014173559/http://www.h-online.com/open/features/Control-Centre-The-systemd-Linux-init-system-1565543.html that in turn links to this: https://web.archive.org/web/20130114034246/http://0pointer.de/blog/projects/systemd.html which is the site of Lennart Poettering, apparently the original author of systemd.
Gregory's Server
@Siph @hannah Wikipedia (en) mentions it and has a link to an archived article at Heise making the claim: https://web.archive.org/web/20121014173559/http://www.h-online.com/open/features/Control-Centre-The-systemd-Linux-init-system-1565543.html that in turn links to this: https://web.archive.org/web/20130114034246/http://0pointer.de/blog/projects/systemd.html which is the site of Lennart Poettering, apparently the original author of systemd.