I have a book entitled "History of Dodge County" (in mid to SE GA)which lists Maloys and Harrells.
In a quick scan through the pages I do not see either name, however, do you know Jim Harrells' parents names?If so, I can go from there.
Also, there is a book entitled "Burch, Harrell, and Allied Families" Vol. III, by Marilu Burch Smallwood. I do not have it, but if you put a post out onto the Harrell site I imagine that someone there would have the book and be able to do look ups for you.
As an aside, I am descended from Margaret Maloy (Studstill) and her second husband Jeremiah Bowen.