You might check the GenWeb sites for all those TX counties, but especially Hamilton Co, TX GenWeb.The webmaster and his wife do a great job, they may know something about ministers for the Church of Christ.I have vol 2 of "A History of Hamilton County Texas" and several Drakes are mentioned in there.Some biographical sketches were submitted by the same person, and even though I don't see a direct connection to yours, there might have been one further up the family tree.
GenWeb sites vary as to info and material offered, some are putting their cemeteries online, and others are adding more records, too.So, browse through everything on each site, and post queries, the more out there, the better the chances of "meeting" someone working on the same line.
The Hamilton Genealogy Soc. has their own library -- it is quite a library -- they might have something in their library on early local ministers.
Do you know when and where James & Isabell died?TX began keeping vital records in 1903, and you can obtain a copy of their death certificates, which should show the names and birth locations of their respective parents.