I have a Familytree on Ancestry.com called My Walker Familytree, owner garlandwalker. There are two My Walker Familytrees on Ancestry beshure to look for mine that has owner garlandwalker. I do have a Col John Walker in my family. E-mail me if you need an invite to my Walker family tree if you can not find it, I also have files I can e-mail to you and there are some Walker's I have not had time to post on the family tree.
Garland Walker firstname.lastname@example.org