LCA - Old German (Muhlenberg strain), Swedish, Danes (Happy Danes), Finns
ALC - German (old ALC, which was formerly Ohio, Buffalo, Iowa synods), Norwegian, Danes (Sober Danes)
ELS - "Little Norwegians"
LCMS - German
Suomi- Finnish (part of LCA)
If I am recalling correctly, in both the LCA and the ALC, the German component was actually larger than the Swedish and Norwegian components respectively.