Here is what Booth's has that might be of some help:

Scanlan, Thomas, Pvt. Co. D, 7th La. Inf. En. June 7, 1861, Camp Moore, La. Present on all Rolls
to Feb., 1862. Roll Jan. and Feb., 1863, Present. Rolls March, 1863, to Nov., 1863, Absent,
sick, in _, Va. Rolls Jan. and Feb., 1864 (last Roll on which borne), Present.

Scanlon, T., Pvt. Co. G, Orleans Fire Regt. La. Mil. On Roll dated Nov. 27, 1861, On parade.
Remarks: No arms.

Scanlon, T. T., Pvt. Co. C, 7th Battn. La. Inf. Roll dated June 8, 1861 (only Roll on which
borne), En. _. Present or absent not stated on Roll.