Here I look at the streetcar routes and the divisions they were assigned to, mainly to see for how long the structure of the old companies remained. As always, information is from .

Baltimore Traction Company
?
3, 1899-1910

Brooklyn, 1899-1907; 1921-1929
6, 1899-1907; 1921-1929

Druid Hill, 1899-1920
0, 1899-1920
3??, 1899-1912

Edmondson Avenue, 1907-1954
4, 1907-1954
9, 1927-1954

Edmondson & Bruce, 1899-1907
4, 1899-1907

Light Street, 1906-1948
6, 1907-1948

Oak Street, 1899-1947
1, 1899-1947
5, 1899-1910

Park Terminal, 1910-1952
1, 1910-1948
2, 1910-1948
3, 1910-1936
5, 1916-1948

Retreat Street, 1899-1933
1, 1899-1910
2, 1899-1933

City and Suburban Railway
Irvington, 1899-1963
7, 1899-1931
8, 1899-1963
9, 1952-1955

McMechen Street, 1899-1908
9?, 1899-1900

Potomac Street, 1899-1938
1900-1926

Waverly, 1899-1908
7, 1899-1908
8, 1899-1908

York Road, 1908-1963
7, 1908-1931
8, 1908-1963