Does there exist an English translation of Steinitz' 1910 work "Algebraische Theorie der Körper"?
You may already know this, but the best reference about Steinitz $1910$ work I could find is the following summary by Peter Roquette: http://www.rzuser.uni-heidelberg.de/~ci3/STEINITZ.pdf. Some English references are given there, and apparently a lot of Steinitz $1910$ work can be found in the book "Modern Algenbra" by van der Waerden, but I don't know about a full translation.
Edit: I think, as Jim has pointed out, that most likely there is no translation. Certainly Peter Roquette would have mentioned a translation in his discussion, and I think he has searched for it.