A note was posted about Civil War income tax records at the NARA. Here
is the information on holdings in the Washington DC NARA for Maryland.
Greg
Maryland, 1862-1866. M771. 21 rolls. DP.
Type of
Roll List Counties Dates
District 1
1 A Caroline, Cecil, 1862-66
Dorchester, Kent
Queen Annes,
Somerset, Talbot,
Worcester
S " 1864
2 M, S " Sept. 1862-Dec. 1866
District 2
3 M, S Baltimore (City), Sept. 1862-Dec. 1865
Wards 1-7;
Baltimore (County),
Districts 5-7, 9-12;
Hartford
4 A, S " 1864
M " July-Dec. 1866
District 3
5 A Baltimore (City), 1862
Wards 8-20
M " Sept. 1862-June 1863
6 M " July 1863-June 1864
7 M, S " July-Dec 1864
8 M, S " Jan.-Aug 1865
9 M " Sept. 1865-Apr. 1866
10 M " May-Dec. 1866
11 A " 1863-64
S " 1864
12 A " 1865
13 A " 1866
District 4
14 A Allegany, Carroll, 1863
Frederick,
Washington
M " Nov. 1862-Apr. 1864
15 A, S " 1864
M, S " May 1864-Apr. 1865
16 A " 1865
M, S " May 1865-Apr. 1866
17 A " 1866
M, S " May-Dec. 1866
District 5
18 A Anne Arundel, 1863-64
Baltimore (County),
Districts 1-4, 8,
13; Calvert;
Charles; Howard;
Montgomery; Prince
Georges; St. Marys
S " 1864
19 A " 1865-66
20 M, S " 1864-65
21 M, S " 1866