This is in addition to my previous post which has the Baltimore harbor maps from 1838 to 1895. I've been cutting these pieces from maps found in the Sheridan collection of the Peabody Library. There is lots of good stuff in it so you can go poke around, most of these map sections are cut from much large city maps.
Crams 1900 Baltimore Harbor
1905 Americana Baltimore Harbor Map
Spoffard Birds Eye 1912 Baltimore Harbor Drawing
Baltimore Harbor 1926 Street Paving Map
1935 Baltimore Harbor Rock Floor Map
1943 Baltimore Street Car Map