I’m not sure if anyone here approves of interlinear texts, but I found a digitized version of “The Anabasis of Xenophon : with an interlinear translation, for the use of schools and private learners, on the Hamiltonian system (1859)”
http://www.archive.org/details/anabasisofxenoph00xenoiala
Happy reading!
PS: if anyone else knows of other electronic interlinear texts, please post them here.