Thanks. I had previously Google-mapped the 10th Ward with links to each enumeration section of the online 1865 database and have now added the 11th boundary (the northeast boundary depiction is quite iffy). 20th is next when I can find the motivation.

I've tried to make the map public and searchable but can't get it to turn up on a Google search as advertised. Ah well.

On edit: Whoops, mis-identified the 11th as the 20th (corrected above)