Alan,
The only confirmation of his rank as a captain I have seen is in an 1864 newspaper article that mentions that "Capt. Breary" (obviously the same person) had been ordered by the governor to move against "outliers" in Dale and Henry Counties. While not official, it is at least contemporary. I have pondered his holding a commission in two units as well. It is interesting. The operation in South Alabama and Northwest Florida is interesting to me because it is not very well documented but seems to have been fairly coordinated and involved numerous small skirmishes. I think it had its roots in early 1864 when the Alabama governor wrote to General Cobb in Florida asking for help in dealing with Jim Ward's band which was then operating from the upper Chipola tributaries in Henry County. There were several sharp skirmishes between Alabama and Florida troops and the bands hiding in the swamps. These escalated dramatically in September ahead of Asboth's 1864 raid on Marianna and the heavy involvement of deserters and Unionists in that event seems to have sparked even more raids and counter-strikes, leading up to efforts involving Breare.

Dale