Why can I get a unique ED for 435 E 16th in Manhattan in 1910?
That address has several interesting problems that are of a general nature, so let me discuss it in detail. Selecting E 16th (actually 16th E as we have it in the list) gives 14 EDs. So you’ll need to select some cross streets or other streets that complete the city block. You can typically determine such streets by using the “View present day map” section of the one-step website. However neither Mapquest nor Yahoo Maps will accept the street name in the form that it appears on the ones-step website (16th E). Yahoo will reject it outright and give you the entire city; Mapquest will give you W 16th. So you’ll need to edit the name of the street in our map section to be E 16th instead of 16th E (that’s why that field was made editable). That done, you’ll immediately find that the cross street is 1st Ave. Selecting 1st Ave narrows it down to five EDs. So you’ll need another cross street or at least another street that completes the city block. Unfortunately 435 appears to be exactly at th
